Spis formatów plików

Spis formatów plików – spis rozszerzeń nazw plików komputerowych, używanych również w innych urządzeniach mikroprocesorowych.

Poniższy spis rozszerzeń nazw plików nie jest pełny^[1]^[2]. Opisy pozostawiono w wersji oryginalnej.

###	Temp file; QTIC	#nn	Part of file image; Long
#24	Printer data file for 24 pin matrix printer; LogoScript	#IB	Printer data file; LogoScript
#SC	Printer data file; LogoScript	#ST	Standard mode printer definitions; LogoScript
$$$	OS/2 archive file (i.e archives.$$$, keys.$$$); OS/2	$$$	Temporary file;
$?	ZX Spectrum file in HOBETA format;	$00	Pipe file; DOS
$DB	Temporary file; dBASE IV	$ED	Editor temporary file; MS C
$O1	Pipe file; DOS	$VM	Virtual manager temporary file; Windows 3.x
)2(	LHA archiver temporary file; LHA	??$	Backup file; P-CAD
??_	Microsoft packed file; Expand	?DK	Disk image; Loaddskf.exe
?UT	Nonpacked FTN mail (? - flavor); FTN software	___	Adinf table; Adinf
_Q_	Archive; CP/M Squeeze	~$~	Temporary file; 1st Reader
~??	Old [BackUp] files (.MNU to .~MN); Resource Workshop - Borland Delphi	0	Compressed harddisk data; DoubleSpace
nnn	Arj archive volumes up to 999; ARJ	nnn	Netware unicode rule table (e.g. 1250_Uni.036); Novell Netware
nnn	News about smth with ext. of ver. number;	nnn	RAR archive volumes up to 999; RAR
000	Compressed harddisk data; DoubleSpace	001	Fax;
075	75x75 dpi display font; Ventura Publisher	085	85x85 dpi display font; Ventura Publisher
091	91x91 dpi display font; Ventura Publisher	096	96x96 dpi display font; Ventura Publisher
0B	Printer font with lineDraw extended character set; PageMaker	1	Fax; many
1	Roff/nroff/troff/groff source for manual page; cawf2.zip	15U	Printer font with PI font set; PageMaker
1ST	Usually README.1ST text file;	2GR	286 Grabber File; Win
301	Fax; Super FAX 2000 - Fax-Mail 96	386	Intel 80386 processor driver; Windows 3.x
386	Windows virtual device driver; Win	3DMF	QuickDraw 3D Metafile; QuickDraw
3DS	3D Studio Graphics format; 3D Studio	3FX	Effect; CorelChart
3GR	386 Grabber File; Win	3T4	Binary file converter to ASCII; Util3
4C$	Datafile; 4Cast/2	4MD	Musical file;
4SW	4DOS Swap File; 4DOS	4TH	FORTH source code file; ForthCMP - LMI Forth
668	Music (the mixing is always at 12048Hz);	669	Music (8 channels); The 669 Composer
6CM	Music (6 Channel Module); Triton FastTracker	75	75x75 dpi display font; Ventura Publisher
8	A86 assembler source code file;	85	85x85 dpi display font; Ventura Publisher
8CM	Music (8 Channel Module); Triton FastTracker	8M	Printer font with Math 8 extended character set; PageMaker
8U	Printer font with Roman 8 extended character set; PageMaker	91	91x91 dpi display font; Ventura Publisher
96	96x96 dpi display font; Ventura Publisher
A	ADA source code file;	A	Library; unix
Ann	Multi volume ARJ archive; ARJ	A11	Graphics AIIM image file;
AAS	Animation Play Script; AAPlay	AB6	Datafile; ABStat
AB8	Datafile; ABStat	ABC	Document; ABC FlowCharter 1.0
ABF	Adobe Binary Screen Font; Adobe Software	ABK	Automatic backup file; CorelDRAW
ABM	Image PALS album file;	ABR	Adobe Brush file for PhotoShop; PhotoShop
ABS	Abstracts (info file);	ABS	Data file; Abscissa
ACA	Project; Project Manager Workbench	ACB	Archive; ACB
ACB	see ACMB;	ACC	Program (DR-DOS - ViewMax); GEM / resident
ACD	Audio Track; ACD	ACE	Archive; ACE
ACF	Adobe Custom Filter for PhotoShop; PhotoShop	ACM	Audio Compression Module add-on; Win
ACMB	Graphics file;	ACO	Adobe Color Palette;
ACT	ACTOR source code file; ACTOR	ACT	Animations Works Actor (Graphics cell); Animation Works
ACT	FoxDoc Action Diagrams; FoxPro	ACT	Presentation; Action!
AD	AfterDark screensaver module; AfterDark	AD2	ADPCM 2-bit compressed voice file; ZFAX
AD3	ADPCM 3-bit compressed voice file; ZFAX	ADA	ADA source code file;
ADB	Ada Package Body;	ADC	Bitmap graphics (16 colors); Scanstudio
ADC	Dictionary; Lingvo	ADD	OS/2 adapter device driver;
ADI	Graphics file; AutoCAD	ADL	MCA adapter description library; QEMM
ADM	After Dark support file; AfterDark	ADN	Add-in; Lotus 1-2-3
ADR	After Dark support file; AfterDark	ADS	Ada Package Specification;
ADT	Datafile for cardfile application; HP NewWave	ADT	Dictionary; Lingvo
ADT	Fax; AdTech	ADV	GUS device driver; Gf166.com
ADX	Document; Archetype Designer	AF2	Flowchart; ABC FlowCharter 2.0
AF3	Flowchart; ABC FlowCharter 3.0	AFI	Truevision bitmap graphics;
AFL	Font file (for Allways); Lotus 1-2-3	AFM	Datafile for cardfile application; HP NewWave
AFM	Type 1 font metric ASCII data for font installer; ATM - many	AFP	Shape palette; ABC FlowCharter
AFT	Template; ABC FlowCharter 3.0	AFW	Workplace; ABC FlowCharter 3.0
AI	Vector graphics file; Adobe Ilustrator	AIF	see AIFF;
AIFC	Sound;	AIFF	Audio Interchange Format File (AIFF); Convert (c) Villena
AiM	Asm Text Mode Image File; The Ultimate Draw	AIN	Archive; AIN
AIO	APL file transfer format file;	AIS	Array of Intensity Samples graphics file; Xerox
AIX	Datafile for cardfile application; HP NewWave	ALG	Activity Log; ARCSOLO
ALL	----- (Arts & Letters) symbol and font files; Arts & Letters	ALL	Filelist w/ all files; FRQView
ALL	Format file for working pages; Always	ALL	General printer information; WordPerfect for Win
ALO	Almanac support file;	ALT	Menu file; WordPerfect Library
AMF	Music (Advanced Module Format); DMP	AMG	Archive; AMGC
AMG	System image file; ACTOR	AMS	Adobe Monitor Setup calibration file; PhotoShop
AMS	Music format;	ANI	Animation; IconAuthor
ANI	Animation cursors for Win; Win95 - WinNT	ANM	Animation; Deluxe Paint Animator
ANN	Help Annotations; Windows 3.x	ANS	ANSI character graphics (animation) file; ANSView
ANS	ASCII text ANSI character set; NewWave Write	AOL	America On-line for Windows DLL; Win
AOS	Add-On Software; Nokia 9000	AP	Archive; WHAP
AP	Datafile; Datalex EntryPoint 90	APC	Printer driver; Lotus 1-2-3
APD	Printer driver; Lotus 1-2-3	APF	Printer driver; Lotus 1-2-3
API	Adobe Printer Ink file for PhotoShop; PhotoShop	API	Passed parameter file; 1st Reader
API	Printer driver; Lotus 1-2-3	APL	APL work space format file;
APL	Support module used by Manugraphics APL products;	APM	Authorware Macintosh; Authorware
APP	Add-in application file; Symphony	APP	Application; FoxPro
APP	Application object file; dBASE Application Generator	APP	Executable application file; DR-DOS - NeXTstep - Atari
APP	Generated application; FoxPro	APR	Employee performance review; Employee Appraiser
APW	Authorware Windows; Authorware	APX	Appexpert database file; Borland C++ 4.5
ARC	Archive; ARC - PKARC/PKXARC - PKPAS - PKUNPAK - QUARK	ARC	Archive; SQUASH
ARF	Automatic Response File;	ARH	Archivers definitions file; DN
ARI	Archive; ARI	ARJ	Archive; ARJ - ARJZ
ARK	ARC archive; CP/M port of ARC file archiver	ARK	Archive; QUARK
ARK	Managing your Money Archive File;	ARR	Arrangement; Atari Cubase
ART	First Publisher graphic file; First Publisher	ART	Graphics (scrapbook); Art Import
ART	Graphics format (Another Ray Tracer); PFS:1st publisher - Art Import	ARX	Archive; ARX
ASC	ASCII text file;	ASC	Transport armor file; PGP
ASD	Autosave file; MS Word	ASD	Presentation; Astound
ASD	Screen driver; Lotus 1-2-3	ASE	Velvet Studio Sample; AWAVE
ASF	Datafile; STATGRAPHICS	ASF	Screen font; Lotus 1-2-3
ASH	Assembly language header file; TASM 3.0	ASI	ASIC language source; ASIC
ASI	Assembler include file; Turbo C - Borland C++	ASM	Assembler language source; TASM - MASM
ASO	Assembler object (object orientated) file; Turbo Assembler	ASP	ASPECT source code file; Procomm Plus
ASP	Association of Shareware Professionals OMBUDSMN.ASP notice;	AST	Adobe Color Separtion table for PhotoShop; PhotoShop
ASW	Authorware Star; Authorware	AT2	Auto template; Aldus Persuasion 2.0
ATM	Adobe Type Manager data/info;	ATT	AT& T Group; GCGW
AU	Sound (audio) file; SUN Microsystems - Convert (c) Villena	AU	Sun/NeXT/DEC Audio file; AWAVE, GoldWave
AUD	Audio file; AudioRack	AUX	Auxiliary dictionary; ChiWriter
AUX	Auxillary references; TeX/LaTeX	AVA	Publication; Avagio
AVB	AntiViral Toolkit Pro Bases;	AVI	Audio Video Interleaved animation file; Video for Windows
AVR	Audio Visual Research; AWAVE	AVS	Application Visualization System;
AVT	AVATAR-coding files; A3E	AW	Text file; HP AdvanceWrite
AWA	Animations Works Accelerated Movie; Animation Works	AWD	Microsoft Fax At Work Document; MS Fax At Work
AWK	AWK script/program;	AWM	Animations Works Movie (as .AVI); Animation Works
AWS	Data; STATGRAPHICS
B	Batch list; APPLAUSE	B& W	Black and white graphics file; atari - mac
B& W	Mono binary screen image; 1st Reader	B_W	Black and white graphics file; atari - mac
B1N	Both mono and color binary screen image; 1st Reader	B30	Printer font (JLaser - Cordata); Ventura Publisher
B8	Raw graphics file (one byte per pixel) plane two; PicLab	BAD	Bad file; Oracle - many
BAK	Backup file;	BAL	Music score; Ballade
BAR	Horizontal bar menu object file; dBASE Application Generator	BAR	Info Bar for GFX2EXE; GFX2EXE
BAS	BASIC language source; QuickBASIC - GW-BASIC	BAT	Batch file; DOS
BB	Database backup; Papyrus	BBL	Bibliographic reference file; TeX/BibTeX
BBM	Brush; Deluxe Paint	BBS	Bulletin Board System announce or text info file;
BBS	Hudson-style messagebase; FTN software	BCH	Batch process object file; dBASE Application Generator
BCH	Datafile; Datalex EntryPoint 90	BCO	Outline font description; Bitstream
BCP	Borland C++ makefile;	BCT	Backup dictionary; Clarion
BCW	Environment settings; Borland C++ 4.5	BDC	Dictionary; Lingvo
BDF	Adobe Glyph Bitmap Distribution Format; Adobe Software	BDF	Binary update file; BUPDATE.EXE (c) TNT Techn.
BDF	Bitmap Distribution Format font file; X11	BDF	Datafile; Egret
BDR	Border; MS Publisher	BDT	Dictionary; Lingvo
BEZ	Outline font description; Bitstream	BF2	Bradford 2 font;
BFC	Briefcase Win95; Win95	BFM	Font metrics; unix/Frame
BFX	Fax; BitFax	BGA	Bitmap graphics;
BGI	Borland Graphics Interface device driver; Turbo C - Turbo Pascal	BI	BASIC include file; Visual Basic
BIB	Bibliography (ASCII);	BIB	Database - not compatible with TeX format; Papyrus
BIB	Literature database; TeX/BibTeX	BIF	Binary Image Format b& w graphics file; Image Capture board
BIN	Binary file, usually zero-start (.com analog);	BIN	SGI Powerflip;
BIN	Text mode memory dump; The Draw - TUD - ACiDDraw - etc	BIO	OS2 BIOS;
BIT	Bitmap X11;	BK	Faxbook; JetFax
BK!	Document backup; WordPerfect for Win	BKn	Timed backup file for document window n; WordPerfect for Win
BK?	Backup file;	BKP	Backup file; Write - TurboVidion DialogDesigner
BKW	Mirror image of font set; FontEdit	BLD	BLoaDable picture; BASIC
BLG	Backup Log; ARCSOLO	BLK	Temporary file; WordPerfect for Win
BM	BitMap graphics file;	BMK	Help Bookmarks; Windows 3.x
BMP	OS/2 or Win graphics format (BitMap Picture); QPeg - CorelDraw - PC Paintbrush - many	BMT	Ami Pro Button; Ami Pro
BNK	Adlib instrument bank file;	BNR	Graphics Banner; Banner - Poster
BOO	Book-format; READIBM	BOO	Compressed file ASCII archive created by BOO (msbooasm.arc); msbooasm.arc
BPC	Chart; Business Plan Toolkit	BPP	Backup application; Clarion
BPT	Bitmap fills file; CorelDRAW	BR	Script; Bridge
BRD	Eagle Layout File;	BRK	Fax; Brooktrout Fax-Mail
BRK	The Brake! Mailer REXX script; The Brake!	BRL	CAD; Ballistic Research Laboratory CAD; BRL
BS2	Archive; BS2.EXE	BSA	Archive; BSArc
BSC	Compressed Apple II file archive created by BINSCII; BINSCII	BSC	Database; Source Browser
BSC	Pwbrmake object file; MS Fortran	BSS	Casio Phone base; PC-LINK
BST	BiblioTex file (BiblioTex=bibliography file); TeX	BSY	Busy flag; FTN soft
BTM	Batch-to-memory (quick batch); 4dos -ndos	BTN	Makeover Button file;
BUFR	Binary Universal Form for the Representation;	BUFR	Meteorological Data;
BUG	Bugs and Problems;	BUP	Backup file;
BUT	Button definitions; Buttons!	BUY	Datafile format; movie
BVn	Overflow file below insert point in Doc n; WordPerfect for Win	BWB	Spreadsheet application; Visual Baler
BWR	Beware (buglist); Kermit	BYU	BYU Movie; BYU
C	C language source; Watcom C/C++	C	Unix file archive; COMPACT
C--	C-- language source; Sphinx C--	C++	C++ language source;
C00	Print file; Ventura Publisher	C01	Typhoon wave files; AWAVE
C86	C source code file; Computer Innovation C86	CA	Initial cache data for root domain servers; Telnet
CA?	Borland packed and splitted file; Borland Installer	CAB	Win 95 packed file; Win 95
CAC	dBASE IV executable when caching on/off (see cachedb.bat);	CAD	Document; Drafix Windows CAD
CAL	Calendar file; Windows 3.x	CAL	Spreadsheet format; SuperCalc
CALS	Computer Aided Acquisition and Logistics;	CALS	Support Raster Format;
CAM	Casio Camera;	CAN	Fax; Navigator Fax
CAP	Caption; Ventura Publisher	CAP	Capture file; ProComm - Telix
CAS	C + ASM language source; Turbo C	CAT	Catalog; CP Backup - dBASE IV
CBC	Fuzzy logic system; CubiCalc	CBL	COBOL source code file;
CBM	Compiled bitmap graphics; XLib	CBS	MasterWord button bar configuration file;
CBT	Computer Based Training; many	CC	C++ source code file;
CC	CC language source; CC	CCC	Bitmap graphics (native format); Curtain Call
CCF	Communications configuration file; Symphony	CCH	Chart; CorelChart
CCITT	CCITT Group 3 and Group 4 Encoding;	CCL	Communication Command Language file; Intalk
CCO	BTX Graphics file; XBTX	CD	CD description; DN
CDA	CD-Audio; Win95	CDB	Card database; CardScan
CDB	Main database; TCU Turbo C Utilities	CDF	Common Data Format;
CDF	Cyberspace Description Format;	CDF	Graphics; netcdf
CDK	Document; Atari Calamus	CDL	CADKey CADL Language; CADKey
CDM	Disk Drivers NPA; Novell NetWare	CDM	Music format (compressed);
CDR	Vector graphics format (drawing); CorelDraw!	CDT	Corel Draw Template File; CorelDraw!
CDX	Compaund index file; FoxPro	CE	Computer Eyes; Conversion Artist
CE	Main.ce; The FarSide Computer Calendar	CEB	Cont. Edge Bitmap; Conversion Artist
CEF	CA-Clipper Workbench Application; CA Clipper	CEF	Export File;
CEG	Bitmap graphics; Tempra Show - Edsun Continuous Edge Graphics	CEL	Animation CEL; 3D Studio
CEL	Graphics; Autodesk Animator - Lumena	CF	Configuration file; imake
CFG	Configuration file;	CFL	Chart; CorelFLOW
CFN	Font data; Atari Calamus	CFO	C Form Object internal format object file; TCU Turbo C Utilities
CFP	Fax; The Complete Fax Portable	CFT	CFast graphics file; Disney Animation Studio
CGA	CGA display font; Ventura Publisher	CGI	Common Gateway Interface script;
CGM	Computer Graphics Metafile vector graphics; A& L - HG - many	CH	Clipper language header; CA Clipper
CH3	Chart; Harvard Graphics 3.0	CH4	Presentation; Charisma 4.0
CHD	Font descriptor; FontChameleon	CHI	ChiWriter Document; ChiWriter - Chiview
CHK	Recovered data; DOS CHKDSK	CHK	Temporary file; WordPerfect for Win
CHL	Configuration History Log;	CHN	Data; Ethnograph 3
CHP	Chapter file; Ventura Publisher	CHR	Character set; Turbo C - Turbo Pascal
CHT	Chart; Harvard Graphics 2.0 - SoftCraft Presenter	CHT	CHeaT in any program/game; many
CHT	Interface file for ChartMaster; dBASE	CHZ	Archive; CHARC
CIF	Caltech Intermediate Format graphics file;	CIF	Chapter information; Ventura Publisher
CiM	C Text Mode Image File; The Ultimate Draw	CIX	Database index; TCU Turbo C Utilities
CKB	Borland C++ 4.x editor keystroke mapping; BCW.EXE	CL	COMMON LISP source code file;
CLA	Source; Clarion	CLD	Clipper debugger configuration file; CA Clipper
CLP	Clip art graphics file; Quattro Pro	CLP	Clipboard file; Windows 3.x
CLP	Compiler responce file; CA Clipper	CLP	Graphics format; PCPAINT/Pictor
CLR	Color binary screen image; 1st Reader	CLR	Color definitions; Photostyler
CLR	Color scheme; Boxer/2	CLR	Palette file for GIS format;
CLS	C++ class definition file;	CLW	MFC Class Wizard information; MS VC++
CM	Data file; CraftMan	CMB	Xtree for Windows Button Bar file;
CMD	Command; dBASE - Waffle	CMD	External command menu; 1st Reader
CMD	OS/2 batch/REXX file; OS/2	CMF	FM-music file (Creative Music File);
CMK	Card; Card Shop Plus	CMM	CMM script (batch) file; CEnvi
CMP	Bitmap graphics (Lead CMP compression);	CMP	Compressed data; PKWare Inc. data compression library
CMP	Header file for PostScript printer files; CorelDRAW	CMP	Photofinish Calibration Map; Photofinish
CMP	User dictionary; MS Word for DOS	CMU	Carnegie Mellon University Formats;
CMV	Animation (CorelMove CorelDraw 4.0); CorelMove CorelDraw 4.0	CNC	CNC general program data;
CNF	Configuration (program - printer setup); program - printer setup	CNF	Configuration file;
CNV	Temporary file; WordPerfect for Win	CNV	Winword DLL used as part of an import operation (CNV=convertor); MS Word
COB	Calgari trueSpace2 File Format;	COB	COBOL source code file;
COD	Code definition table; UUPC	COD	Datafile; Forecast Plus - MS Multiplan - StatPac Gold
COD	file uncluding CODES for any program/game; many	COD	Printer code definition file; Boxer/2
COD	Program compiled code; FORTRAN	COD	Template source file; dBASE Application Generator
COD	Videotext file;	COL	Color palette; Autodesk Animator - many
COL	Spreadsheet; MS Multiplan	COM	Command (memory image of executable program); DOS
CON	Configuration file; Simdir	CPC	Compressed image; Cartesian Perceptual Compression
CPD	Script; Complaints Desk	CPF	Fax; The Complete Fax
CPI	ColorLab Processed Image bitmapped graphics file;	CPI	MS-DOS codepage file; MODE.EXE
CPL	Control panel file; Windows 3.x	CPL	Presentation; Compel
CPP	C++ language source; Watcom C/C++	CPP	Presentation; CA-Cricket Presents
CPR	Knowledge Access; GCGW	CPS	----- backup of startup files by QEMM (?) autoexec.cps;
CPT	Encrypted memo file; dBASE	CPT	Mac file archive; COMPACT PRO
CPT	Template; CA-Cricket Presents	CPZ	Music text file; COMPOZ
CRA	Advanced crack file (usually text);	CRD	Cardfile; Windows 3.x - YourWay
CRF	Cross-reference; MS MASM - Zortech C++	CRK	Crack file (usually text);
CRP	Encrypted database; dBASE IV	CRS	File Conversion Resource; WordPerfect 5.1
CRT	Terminal settings information; Oracle	CRU	Compressed file archive created by CRUSH;
CSG	Graph; Statistica/w	CSM	Borland C++ 4.x precompiled header file; BCW.EXE
CSP	PC Emcee Screen Image file; Computer Support Corporation	CSS	Datafile; CSS - Stats+
CSS	Datasheet; Statistica/w	CSV	Adjusted EGA/VGA palette; CompuShow
CSV	Comma Separated Values text file format (ASCII);	CTC	Control file; PC Installer
CTF	Character code translation file; Symphony	CTL	Control file; dBASE IV - Aldus Setup
CTX	Ciphertext file; Pretty Good Privacy RSA System	CTX	Course TeXt file; some Microsoft online guides
CUF	C Utilities Form definition; TCU Turbo C Utilities	CUR	Windows resource (cursor image file); Resource Workshop - WRT - Watcom Resource Editor
CUT	Graphics format (bitmapped graphics); dr.Halo	CV4	Color file; CodeView
CVP	Cover page; WinFax	CVS	Graphics; Canvas
CVT	Backup file for CONVERTed database file; dBASE IV	CVW	Color file; CodeView
CWEB	C Web;	CXX	C++ source code file; Zortech C++
DAT	Data file in special format or ASCII;	DAT	Database file; Clarion
DB	Сonfiguration; dBASE IV - dBFast	DB	Вatabase file; Paradox - XTreeGold - dbvista
DB	Multi Edit config; ME	DB$	Temperature debug info; Clarion Modula-2
DB$	Temporary file; dBASE	DB2	Database; dBASE II
DB3	Database; dBASE III	DBA	Database file; Turbo Prolog - DataEase
DBD	Business data; Business Insight	DBD	Debug info; Clarion Modula-2
DBF	Database file; dBASE III/IV - FoxPro - dBFast - DataBoss	DBG	Debugger script; DOS debug - Watcom debuger
DBG	Symbolic debugging information; MS C/C++	DBK	Database backup; dBASE IV
DBM	Datafile; DataEase	DBM	Menu template; DataBoss
DBO	Compiled program; dBASE IV	DBS	Data file used by Managing Your Money;
DBS	Database in SQL Windows format;	DBS	Datafile; PRODAS
DBS	Printer description file; MS Word - Works	DBT	FoxBASE+ style memo; FoxPro
DBT	Memo file for database w/same name; dBASE IV - dBFast	DBW	Windows file; DataBoss
DBX	DataBeam; GCGW	DCA	Document Content Architecture text file; IBM DisplayWrite
DCF	Disk image file;	DCL	Delphi Control Library; Borland Delphi
DCM	DCM music module; AWAVE	DCP	OS/2 device code page; OS/2
DCS	Bitmap graphics (CYMK format); QuarkXPress	DCS	Datafile; ACT! Activity Files
DCT	Dictionary: used by many programs with program dependent format; Clarion	DCT	Spell checking dictionary; Harvard Graphics 3.0 - Symphony
DCU	Delphi unit (compiled); Borland Delphi	DCX	Multi-page PCX graphics (common fax format); Intel - SpectraFAX
DD	Macintosh file archive; DISKDOUBLER	DDB	Bitmap graphics;
DDI	Disk image; DiskDupe	DDP	Device Driver Profile file; OS/2
DEB	DEBUG script; DOS Debug	DEF	Assembly header file; Geoworks
DEF	Defaults - definitions;	DEF	Linker definition file; TLink - WLink...
DEM	Demonstration;	DEM	Digital Elevation Model;
DEM	Graphics file; VistaPro	DEM	Vista DEM file; Meta.exe VP3
DES	Ascii text parameter description; AWAVE	DEV	Device driver;
DFD	Data Flow Diagram graphic file; Prosa	DFI	Outline font description; Digifont
DFL	Default program settings; Signature	DFM	Data Flow Diagram model file; Prosa
DFM	Delphi form module; Borland Delphi	DFS	Delight Sound File;
DFV	Printing form (Word); MS Word	DFX	Micrografx Effects DLL;
DGN	Graphics file; MicroStation	DGS	Diagnostics;
DH	Dependency information for .ph; Geoworks	DHP	Dr. Halo PIC Format graphics file; Dr. Halo II - III
DHT	Datafile; Gauss	DIA	Diagraph graphics file; Computer Support Corporation
DIB	"Device Independent Bitmap; rarely used Windows 3.0 bitmap"; Win - OS/2	DIC	Dictionary (e.g. from WinWord);
DIF	Borland patch data file; Borland patch	DIF	Data Interchange Format; Visicalc
DIF	OS/2 V2.2 Display Information File; OS/2	DIF	Output from Diff command - script for Patch command;
DIG	Digilink; AWAVE	DIG	Sound Designer 1 audio file; AWAVE
DIP	Graphics;	DIP	Watcom debug info processor; WatcomDebugger
DIR	Dialing directory file; Procomm Plus	DIR	Directory file; VAX - CPS Backup
DIR	Movie; MacroMind Director 4.x	DIS	Distribution file; VAX Mail
DIS	Thesaurus; CorelDraw	DIZ	Description file (Description In Zip);
DKB	Raytraced graphics; DKBTrace	DL	Animation format (Italian origin); Display - DL Viewer
DLD	-----; Lotus 1-2-3	DLG	Dialog resource script file; MS Windows SDK
DLG	Dialog resources; DN	DLG	Digital Line Graph;
DLG	Windows SDK dialog editor data file;	DLL	Dynamic Link Library; Windows 3.x - OS/2
DLL	Export/import filter; CorelDRAW	DLS	Setup; Norton Disklock
DMF	Music format (Delusion Digital Music File); Delusion	DMO	Demo; Derive
DMP	Dump file (eg. screen or memory);	DMS	Amiga file archive; DISKMASHER
DOC	ASCII doc file;	DOC	WinWord native file; MS Word
DOG	Screen file; Laughing Dog Screen Maker	DOH	Dependency information for .poh; Geoworks
DOS	External command file; 1st Reader	DOS	Network driver (eg. pkt_dis.dos);
DOS	OS/2 V3 SVGA PMI-File; Svga.exe	DOS	Something for MS-DOS (e.g. msdos.dos); Win95
DOS	Text file containing DOS specific info;	DOT	Line-type definition file; CorelDRAW
DOT	MS Word document template; MS Word	DOX	Text file; MultiMate 4.0
DOZ	Description Out of Zip; VENDINFO	DP	Calendar file; Daily Planner
DP	Data file; DataPhile	DPR	Default project- and state-related information; Borland C++ - Delphi - C
DPX	Digital Moving Picture Exchange;	DRP	Web3D File; Web3D
DRS	Display Resource; WordPerfect for Win	DRV	Driver;
DRW	DRaW file; Windows Draw, Designer - Micrografx (now Corel)	DRW	DRaW file; iGrafx Business, iGrafx Designer and other iGrafx - iGrafx
DS4	Vector graphics; Micrografx (now Corel) Designer 4.x	DSC	Discard file; Oracle
DSC	Description file;	DSF	Database; DataShaper
DSF	DeSigner File; Micrografx, iGrafx, Corel	DSF	Delusion Digital Sound File; Delusion
DSK	Desktop configuration; BP - DN - BC++ - TP	DSK	Disk Drivers; Novell NetWare
DSM	Digital Sound Module; DSI	DSN	Design; Object System Designer
DSP	Display parameters; Signature	DSP	Dynamic Studio Professional Module; Dynamic Studio
DSP	Graphics display driver; Dr.Halo	DSP	Norton viewer DLL; Win
DSR	Driver Resource; WordPerfect for Win	DSS	Screensaver file; DCC
DSS	Sound; Digital Soup	DST	WAIN (Scanner spec) data source DLL; Win
DSW	Borland C++ 4.x desktop layout file; BCW.EXE	DT_	Data fork of a Macintosh file; Mac-ette
DTA	Data file; Turbo Pascal - PC-File - Stata	DTF	Database file; PFS - Q& A
DTM	DigiTrekker music module; AWAVE	DTP	Document; Timeworks Publisher3
DTP	Page Magic 2.0 publication; Page Magic 2.0	DTP	Publication; Publish-It!
DVC	Data; Lotus 1-2-3	DVI	DeVice Independent document; TeX
DVP	DESQView run-file; DESQView	DVP	Device parameter file; AutoCAD
DW2	Drawing; DesignCAD for windows	DWB	Coryphaeus Software Designers Workbench; CSD
DWC	Archive; DWC	DWD	DiamondWare Digitized file; AWAVE
DWG	Drawing; AutoCAD - Drafix	DX	Text file; DEC WPS/DX format - DEC WPS Plus
DXF	Drawing Interchange File Format vector graphics (AutoCAD); AutoCAD	DXN	Fax; Fujitsu dexNET
DYN	Data; Lotus 1-2-3
EAS	Extended file attributes; OS/2	EBJ	Error-checking object file; Geoworks
EC	Error checking preprosessed Goc source code; Geoworks	ED5	EDMICS; GCGW
EDA	Ensoniq ASR disk image; AWAVE	EDE	Ensoniq EPS disk image; AWAVE
EDK	Ensoniq KT disk image; AWAVE	EDL	EDL; Premiere
EDQ	Ensoniq sq1,2/ks32 disk image; AWAVE	EDS	Ensoniq SQ80 disk image; AWAVE
EDT	Default settings; VAX Edt editor	EDT	Ensoniq TS disk image; AWAVE
EDT	External editors definitions; DN	EDV	Ensoniq VFX-SD disk image; AWAVE
EEB	Button bar for Equation Editor; WordPerfect for Win	EFA	Ensoniq ASR file; AWAVE
EFE	Ensoniq EPS file; AWAVE	EFE	Ensoniq EPS instrument file; AWAVE
EFK	Ensoniq KT file; AWAVE	EFQ	Ensoniq SQ1/SQ2/KS32 file; AWAVE
EFS	Ensoniq SQ80 file; AWAVE	EFT	Ensoniq TS file; AWAVE
EFT	High resolution screen font; ChiWriter	EFV	Ensoniq VFX-SD file; AWAVE
EFX	Fax; Everex EFax	EGA	EGA display font; Ventura Publisher
EKA	Internal data files; Borland's Eureka	EL	ELISP source code file; Emacs lisp
ELC	Compiled ELISP code; Emacs lisp	ELI	Archive; ELI
ELT	Event list text file; Prosa	EMD	ABT Extended MoDule; AWAVE
EMD	ABT Extended MoDule; AWAVE	EMF	Microsoft Enhanced Metafile;
EMU	Terminal emulation data; BITCOM	ENC	Encoded file - UUENCODEd file; Lotus 1-2-3 - uuexe515.exe
ENC	Music; Encore	END	Arrow-head definition file; CorelDRAW
ENFF	Extended Neutral File Format;	ENG	Dictionary engine; Sprint
ENG	English documentation;	ENG	Graphics file (charting); EnerGraphics
ENV	Envelope or Environments;	ENV	Enveloper macro; WOPR
ENV	Environment file; WordPerfect for Win	EPD	Publication; Express Publisher
EPI	Document; Express Publisher	EPI	Encapsulated PostScript graphic file;
EPS	Encapsulated PostScript (Graphics format); CorelDraw - PhotoStyler - PMView - Adobe Illustrator - Ventua Publisher	EQN	Equation filE; WordPerfect for Win
ERD	Entity Relationship Diagram graphic file; Prosa	ERM	Entity Relationship Diagram model file; Prosa
ERR	Compiler/linker error report;	ESH	Extended Shell batch file;
ETH	Document; Ethnograph 3	ETX	Structure-enhanced text for some ascii text browsers;
EUI	Ensoniq EPS family CD image; AWAVE	EVT	Events descriptions;
EVY	Document; WordPerfect Envoy	EWD	Document; Express Publisher for Windows
EX3	Device driveR; Harvard Graphics 3.0	EXC	Exclude file for Optimize (do not process) (QEMM); QEMM
EXC	REXX source code file; VM/CMS	EXE	Directly executable program; DOS
EXM	MSDOS executable, system-manager compliant (HP calculator); HP calculator	EXP	Protected mode EXE by PharLap Software; PharLap
EXT	Extensions descriptions file;	EXX	Intermediate file by MsgPut; IBM LinkWay
EZF	Fax; Calculus EZ-Fax
F	Archive; FREEZE	F	Fortran language source file; NDP Fortran
Fnn	DOS screen text font - height nn pixels; fntcol13.zip	F01	Fax; perfectfax
F2R	Farandole Linear Module; Farandole	F3R	Farandole Blocked Linear Module; Farandole
F77	FORTRAN 77 source code file;	F96	Fax; Frecom FAX96
FAC	see FACE;	FACE	Usenix FACE graphics file;
FAQ	Frequently Asked Questions text file;	FAR	Music format (Farandole Composer Module); Farandole
FAS	Macsyma compiled program;	FAX	Fax (raster graphics in CCITT format); most Fax programs
FBM	Fuzzy Bitmap;	FC	Spell checking dictionary; Harvard Graphics 2.0
FCM	Binary file patch file (forward compression); jlpak10.zip	FD	Declaration file; MS Fortran
FD	Field offsets for compiler; DataFlex	FD	Front Door' resource files; FD
FDW	Form; F3 Design and Mapping	FEB	Button bar for Figure Editor; WordPerfect for Win
FEI	Fatal Error Infotable; Geoworks	FF	Intelligont FIAS format;
FF	Outline font description; Agfa Compugraphics	FFF	Fax; defFax
FFI	Atech FastFont (AllType);	FFIVW	File Format for the Interchange of Virtual Worlds;
FFT	DCA/FFT Final Form Text text file; DisplayWrite	FFT	Dca/FFT Final Form Text text file (DisplayWrite);
FH3	Vector graphics; Aldus FreeHand 3.x	FH4	Vector graphics; Aldus FreeHand 3.x
FI	Interface file; MS Fortran	FIF	Fractal Image Format file;
FIL	File template; Application Generator	FIL	Filelist;
FIL	Files list object file; dBASE Application Generator	FIL	Mirror.FIL is the name given to the saved FAT by the mirror program included in some versions of DOS and in PCTools; MS-DOS -
FIL	Overlay; WordPerfect	FIN	Print-formatted text file; Perfect Writer - Scribble - MINCE
FIO	Aldus PhotoStyler graphics filter;	FIO	Image PALS viewer DLL;
FIT	File Index Table; WindowsNT	FIT	see FITS;
FITS	Flexable Image Transport System;	FIX	Patch file;
FKY	Macro file; FoxPro	FLB	Format library; Papyrus
FLC	Animation format FLIC > 320x200; AAPlay - Autodesk AniPro	FLD	Folder; Charisma
FLI	Animation format FLIC 320x200; Autodesk Animator	FLI	TeX font library; EmTeX
FLM	Film Roll; AutoCAD/AutoShade	FLT	Data/file conversion filter (or overlay); Alsud - MS Word
FLT	Filter file; Micrografx Picture Publisher	FLT	MultiGen Flight;
FLT	Support file - graphics filter; Asymetrix ToolBook	FLX	Animation format;
FLX	Compiled binary; DataFlex	FM	Spreadsheet; FileMaker Pro
FM1	Spreadsheet; Lotus 1-2-3 release 2.x	FM3	Device driver; Harvard Graphics 3.0
FM3	Spreadsheet; Lotus 1-2-3 release 3.x	FMB	File Manager Button bar; WordPerfect for Win
FMF	Font or icon file; IBM LinkWay	FMK	Makefile; Fortran PowerStation
FMO	Compiled format file (dBASE IV); dBASE IV	FMT	Format file; dBASE IV - FoxPro - Clipper 5 - dBFast
FMT	Gate3 format file;	FMT	Style sheet; Sprint
FMV	Full Motion Video file;	FN3	Font file; Harvard Graphics 3.0
FND	Files searching properties; Win95	FNK	FunkTracker music module; AWAVE, FunkTracker
FNT	Font file; many	FNX	Inactive font; Exact
FO1	Font file; Borland Turbo C	FO2	Font file; Borland Turbo C
FOG	Fontographer Database File; Fontographer3.5	FOL	Folder of saved messages; 1st Reader
FON	Log of all calls; Procomm Plus	FON	Terminate phonebook; Terminate - Terminator - Telix
FON	Windows bitmapped font file; Win	FONT	Font data; unix
FOP	Freedom of the Press graphic file;	FOR	Form; WindowBase
FOR	Fortran language source file; MS Fortran - Watcom Fortran	FOT	Installed Truetype font; Windows Font Installer
FOX	Foxbase executable (precompiled .prg); FoxBase	FP	Configuration file; FoxPro
FPC	Catalog; FoxPro	FPD	TMT Pascal compiled unit; TMT Pascal
FPT	Foxpro memo field tables; FoxPro	FPW	Floorplan drawing; FloorPLAN plus for Windows
FR?	Packed mail; FTN software	FR3	Renamed dBASE III+ form file; dBASE IV
FRF	FontMonger Database file; FontMonger	FRG	Uncompiled report file; dBASE IV;
FRL	GP-Forth library; GP-Forth;	FRM	Registration or other form; ;
FRM	Report file; dBASE IV - Clipper 5 - dBFast;	FRM	Visual Basic Form; Visual Basic;
FRO	Compiled report file; dBASE IV;	FRP	Form; PerForm PRO Plus - FormFlow;
FRS	Screen Font Resource; WordPerfect for Win;	FRT	Additional (FPT) report description file; FoxPro;
FRT	GP-Forth source file; GP-Forth;	FRX	Main (DBF) report description file; FoxPro;
FRX	Visual Basic binary program file; Visual Basic;	FSL	Form; Paradox for Windows;
FSM	Farandole Composer WaveSample; Farandole;	FST	Linkable program; dBFast;
FSX	Data; Lotus 1-2-3;	FTM	Font file; Micrografx
FTP	Configuration; FTP Software PC/TCP	FW	Database; FrameWork
FW2	Database; Framework II	FW3	Database; Framework III
FWEB	Fortran WEB;	FX	On-line guide; FastLynx
FXD	Phonebook; FAXit	FXP	Foxpro executable (precompiled .prg); FoxPro
FXS	FAX Transmit Format graphics file; WinFax
G	Data chart; APPLAUSE	G16	GoldED for DOS compiled config; GOLDED.EXE
G8	Raw graphics file (one byte per pixel) plane three; PicLab - Cubicomb Picturemaker	GAM	Fax; GammaFax
GBL	Global definitions; VAXTPU editor	GBL	Global module in Basic programs;
GC1	Lisp source code; Golden Common Lisp 1.1	GC3	Lisp source code; Golden Common Lisp 1.3
GCA	IBM GOCA; GCGW	GCD	Graphics;
GDF	Dictionary file; GEOS	GDS	McDonnell-Douglas Things;
GE	GEcho config file; GEcho	GED	EDITOR's native file format; Arts & Letters
GED	GoldED for DOS compiled config file; GOLDED.EXE	GED	Graphics editor file; EnerGraphics
GEM	Vector graphics file; GEM - Ventura Publisher	GEN	Compiled template; dBASE Application Generator
GEN	Generated text; Ventura Publisher	GEO	Geode; Geoworks
GEO	GEOS specific file (application); GEOS	GEO	GoldED for OS/2 compiled config file; GED2.EXE
GEX	GEcho config file; GEcho	GFB	Compressed GIF image created by GIFBLAST; gifblast.exe
GFO	SGI Radiosity;	GFT	Font; NeoPaint
GFT	GEM-translator font file;	GFX	Instant Artist graphics Files; Instant Artist
GFX	PCBoard @X-coded colorful text; GFX2COM - GFX2EXE	GIB	Chart; Graph-in-the-Box
GID	Help index; windows 95 help	GIF	Compuserves' Graphics Interchange Format (bitmapped graphics); QPeg - Display - CompuShow
GIW	Presentation; Graph-in-the-Box for Windows	GKH	Ensoniq Disk Image (VFX, SD, EPS, ASR, TS); Ensoniq
GKS	Graphics Kernel System;	GL	Animation; GRASP GRAphical System for Presentation
GL	Animation format; grasprt.exe, PV	GLB	Global module in Basic programs;
GLM	Datafile; Glim	GLO	Global module in Basic programs;
GLS	Datafile; Across	GLY	Winword Glossary; MS Word
GMF	CGM graphics file; APPLAUSE	GMP	Geomorph tile map; SPX
GOC	Goc source code file; Geoworks	GOE	GOES graphic file;
GOH	Goc header file; Geoworks	GP	Geode parameter file; Geoworks Glue
GPH	Graph; Lotus 1-2-3/G	GPK	Omnigo program package;
GR2	Screen driver; Windows 3.x	GRA	Datafile; SigmaPlot
GrADS	Metafile;	GRASP	Graphical System for Presentation;
GRB	MS-DOS Shell Monitor file; MS-DOS 5	GRD	Drivers for GRX (graphics library); GRX (c) Free Soft. Found.
GRF	Graph file; Graph Plus - Charisma	GRIB	Gridded Binary;
GRN	Drivers for GRX (graphics library); GRX (c) Free Soft. Found.	GRP	Group file; Windows 3.x - Papyrus
GRP	Pictures group; PixBase	GRY	Graphics format (RAW GREYz);
GS1	Presentation; GraphShow	GSD	Vector graphics; Professional Draw
GSM	Raw GSM 6.10 audio stream; AWAVE	GSW	Worksheet; GraphShow
GUP	-----; PopMail	GV	GrandView outline file;
GXL	Graphics library; Genus	GZ	Archive; GNU zip - WinZipNT
H	Header file (usually C language); Watcom C/C++	H--	C-- language header; Sphinx C--
H!	On-line help file; Flambeaux Help! Display Engine	H!	Pertext database; HELP.EXE
H++	Header file; C++	HA	Archive; HA
HAL	Data file; Hyper Access Lite OS/2	HAM	Disk Drivers NPA; Novell NetWare
HAP	Archive; HAP3	HBK	MathCAD handbook; MathCAD
HC	Header file;	HDF	Help file; Help Development Kit
HDF	Hierarchical Data File graphics file; SDSC Image Tools	HDL	Alternate download file listing; Procomm Plus
HDR	Datafile; Egret	HDR	Message header text; Procomm Plus - 1st Reader
HDR	PC-File+ Database header;	HDR	SPOT image file;
HDS	Hierarchical Data System;	HDW	Vector graphics; Harvard Draw
HDX	Help index; AutoCAD - Zortech C++	HEP	Novell Help Librarian Data File; Novell NetWare
HEX	Hex dump;	HFI	HP Font Info file; GEM
HGL	Highlight groups definitions; DN	HGL	HP Graphics Language graphics file;
HH	C++ header file;	HHH	Precompiled header file; Power C
HHP	Help information for remote users; Procomm Plus	HI	Game high scores table;
HIN	Molecule; HyperChem	HIS	History of executing/viewing/editing; DN
HLB	Help library; VAX	HLP	Help file;
HLX	Multi Edit help file; MultiEdit 5.0	HLZ	Multi Edit packed help file; MultiEdit
HMI	Music format (MIDI);	HMM	Alternate Mail Read option menu; Procomm Plus
HMP	Music format (MIDI);	HNC	CNC program files Heidenhain (?) dialog;
HOF	Hall Of Fame (game scores);	HP	Printout file for HP printers/plotters (HP/GL);
HP8	ASCII text HP Roman8 character set; NewWave Write	HPF	HP LaserJet fonts; PageMaker
HPG	see HPGL;	HPGL	Plotter file vector graphics (Hewlett-Packard Graphics Language); AutoCad - Harvard Graphics
HPI	Font information file; GEM	HPJ	Help project; MS Help Compiler for Windows - HC. EXE
HPK	Archive; HPACK	HPM	Alternate Main menu for privileged users; Procomm Plus
HPM	EMM text; HP NewWave	HPM	High Performance Map; Quaestor 1.x
HPP	C++ header file; Zortech C++ - Watcom C/C++	HPPCL	Hewlett-Packard Printer Control Language;
HQX	Archive (ASCII Mac); BINHEX	HRF	Graphics file (Hitachi Raster Format);
HRM	Alternate Main menu for limited/normal users; Procomm Plus	HRZ	Graphics format; SSTV
HS2	Monochrome image; Postering	HSC	2-op FM music; HSC tracker - hscplay.exe
HSI	Handmade Software Inc. graphics file almost JPEG; Image Alchemy	HST	History file; Procomm Plus
HTM	see HTML;	HTML	Hyper Text Macro Language (WWW); NetScape - Mosaic - many
HTX	Hypertext file;	HWD	Presentation; Hollywood
HXM	Alternate Protocol Selection menu for all users; Procomm Plus	HXX	C++ header file;
HY1	Hyphenation algorithms; Ventura Publisher	HY2	Hyphenation algorithms; Ventura Publisher
HYC	Data; WordPerfect	HYD	Hyphenation dictionary; WordPerfect for Win
HYP	Archive; HYPER
I	Preprocessor output file; Borland C Preprocessor	IAX	Bitmap graphics (IBM Image Access eXecutive);
IBG	PDS graphic file;	IBM	Archive (Internal IBM only); ARCHDOS
ICA	Bitmap graphics (Image Object Content Architecture);	ICB	Bitmap graphics;
ICC	ICC configuration;	ICE	Archive; Cracked LHA (old LHA)
ICM	ICC configuration;	ICN	ICON source code file;
ICO	Icon file; ICONEDIT.EXE	ID	Disk identification file;
IDB	IDA database; IDA	IDC	IDA C language source; IDA
IDE	Borland C++ 4.x IDE project; BCW.EXE	IDF	MIDI instrument description;
IDS	IDA imported names format; IDA	IDW	Vector graphics; IntelliDraw
IDX	Index; many - FoxPro	IFD	Form; JetForm Design
IFF	Interchange Format File (IFF); EA Software - Convert (C) Villena - Amiga	IFF	Sun TAAC Image File Format; SDSC Image Tool
IFP	Script; KnowledgeMan	IFS	Fractal image compressed file; Yuvpak
IFS	Installable file system; OS/2	IGES	Initial Graphics Exchange Specification;
IGF	Inset Systems; GCGW	IHP	Watcom help file; whelp.exe
IHS	Inbound History; Bink/+	IL	hDC Designer Icon Lin Dll format;
ILB	Data; Scream Tracker	ILK	Outline of program's format; MS ILink incremental linker
IM8	Sun raster graphics file;	IMA	Mirage vector graphics; EGO - Chart - Autumn
IMG	ADEX graphic file;	IMG	Disk Image; NC 5.0
IMG	GEM bitmapped graphics file; Ventura	IMG	Vivid IMG file;
IMP	Spreadsheet; Lotus Improv	IMQ	Image presentation; ImageQ
IN$	Installation file; HP NewWave	IN3	Input device driver; Harvard Graphics 3.0
INB	Test script; Vermont HighTest	INC	Include file; several programming languages
IND	Data Index; dBASE IV	INF	Information text file (ASCII);
INF	Install script;	INF	OS/2 hypertext help system file; VIEW.EXE
INF	Type 1 LaserJet font information file; soft font installers	INFO	GNU info reader (output from texinfo); unix
INFO	Icon Data (Amiga);	INGR	Intergraph Raster File Format;
INI	Initialization file;	INK	Pantone reference fills file; CorelDRAW
INS	Data; WordPerfect	INS	Ensoniq Instrument File; Ensoniq
INS	Installation script; 1st Reader	INS	Instrument music file (Adlib);
INT	Borland Interface Units;	INT	Program saved in Internal (semi-compiled) format; Signature
INT	Source of Borland interface module;	INX	Index; Foxbase
IO	Archive; CPIO	IOB	3d graphics database in TDDD format;
IOC	Organizational chart; Instant ORGcharting!	ION	4DOS descript.ion file (file descriptions); 4DOS
IP	Immortal Player file; Immortal Player	IPL	Pantone Spot reference palette file; CorelDRAW
IRS	Resource (WordPerfect) standard.irs; WordPerfect	IRTR	Graphicon-2000 Interactive Real-Time PHIGS;
ISD	Spelling Checker dictionary; RapidFile	ISH	Archive; ISH
ISO	ISO-9660 table;	IST	Digitrakker Instrument File; AWAVE
IT	Impulse Tracker music file; Impulse Tracker	IT	Settings; intalk
ITF	Interface file; JPI TopSpeed Pascal	IV	SGI Inventor;
IV-VRML	Inventor VRML Format;	IW	Presentation flowchart; IconAuthor - HSC InterActive
IWA	Text file; IBM Writing Assistant	IWP	Text file; Wang
IZT	Izl binary token file; IZL
JAM	Jam messagebase; FTN software	JAR	Archive; JAR
JAS	see JASC;	JASC	Graphics format (JASC);
JAV	see JAVA;	JAVA	Java source code file;
JBD	Datafile; SigmaScan	JBIG	Joint Bilevel Image Group;
JBX	Project file; Project Scheduler 4	JET	Fax; Hybrid JetFax
JFF	see JFIF;	JFIF	JPEG File Interchange Format;
JIF	see JFIF;	JMS	Music format (JMusic file); UltraForce
JOR	Journal file SQL;	JOU	Journal backup; VAX Edt editor
JPC	Graphics; Japan PIC	JPEG	Graphics file JPEG Joint Photography Experts Group format; QPeg - FullView - Display
JPG	see JPEG;	JTF	Fax; Hayes JT Fax
JTF	Graphics (TIFF file with JPEG compression);	JW	Text document; JustWrite
JWL	Library; JustWrite	JZZ	Spreadsheet; Jazz
Knn	Database key file; Clarion	K3D	Description of macro language 3DS; 3DS
KAR	Music format (Karaoke);	KAR	Precompiled .prg for KARAT; Rus. FOX+ 2.0
KB	Keyboard script; Borland C++ 4.5	KB	Program source; Knowledge Pro
KBD	Keyboard mapping; LogoScript - Signature - Procomm Plus	KBM	Keyboard mapping; Reflection 4.0
KCL	Lisp source code; Kyoto Common Lisp	KDC	Kodak Digital Camera (graphics); PhotoEnhancer by PictureWorks
KEX	Kedit Macro File; Kedit	KEY	Datafile; Forecast Pro
KEY	Keyboard macros;	KEY	OS/2 archive .key-file (i.e. OS2.KEY); OS/2
KEY	Security file eg. Shareware Registration info;	KFX	Kofax Group; GCGW
KIT	Power Chords drum kit file; Power Chord	KML	Kedit Macro Library;
KPP	Toolpad; SmartPad	KPS	Ibm KIPS bitmap graphics;
KR1	Kurzweil 2000 sample file; AWAVE	KR2	Kurzweil 2000 sample file; AWAVE
KRZ	Kurzweil K2000 File; Kurzweil	KYB	Keyboard mapping; FTP Software PC/TCP
L	LEX source code file;	L	Linker directive file; WATCOM wlink
L	LISP source code file;	LAB	Datafile; NCSS - SOLO
LAB	Mailing labels; Q+E for MS Excel	LAN	Erdas image file;
LAN	LAN Drivers; Novell NetWare	LAY	Word chart layout; APPLAUSE
LBG	Label generator data; dBASE IV	LBL	Label; dBASE IV - Clipper 5 - dBFast
LBM	Graphics format (Amiga); Pic-view - Deluxe Paint	LBM	Linear bitmap graphics; XLib
LBO	Compiled label; dBASE IV	LBR	Archive; CP/M LU
LBR	Display driver; Lotus 1-2-3	LBT	Additional (FPT) label description file; FoxPro
LBX	Main (DBF) label description file; FoxPro	LCF	Linker Control File; Norton Guides compiler
LCH	Chart; IBM Works for OS/2	LCK	Lockfile; Paradox
LCL	Data; FTP Software PC/TCP	LCL	Data (FTP Software PC/TCP);
LCN	Lection; WordPerfect	LCS	Datafile; ACT! History Files
LCW	Spreadsheet; Lucid 3-D	LD	Long Distance codes file; Telix
LD1	Overlay file; dBASE	LDB	Data filer database; IBM Works for OS/2
LDB	Overlay file; MS Access	LDF	Data filer form; IBM Works for OS/2
LDF	Library definition file; Geoworks Glue	LE	DOS/4GW executable image; DOS/4GW PM 32X DOS Extender
LES	Lesson (check *.cbt);	LEV	Level file; NetHack 3.x
LEX	Dictionary; MS Word - Lexicon	LFD	LucasArts resource file; LucasArts games
LFT	Laser printer font; ChiWriter	LG	Logo procedure definitions; LSRHS Logo
LGO	Logo for header and footer; SuperFax	LGO	Startup logo code; Windows 3.x
LHA	Archive; LHA/LHARC	LHW	Amiga archive; LHWARP
LIB	Library file; several programming languages	LIC	License file used by some programs to put their license on disk;
LIF	Archive;	LIF	CA Clipper packed file; CA Clipper installer
LIF	Logical Interchange Format data file; Hewlett-Packard	LIM	Archive; LIMIT
LIN	Line types; AutoCAD	LIS	Listing; VAX
LIT	Web3D File; Web3D	LJ	Text file for HP LJ II printer;
LL3	LapLink III related file (document); LapLink III	LMP	Demo for Doom (computer 3d game); Doom - Doom2
LNG	Language defination file;	LNK	Linker response file; .RTLink
LNK	Linker script;	LNK	Windows 95 shortcut; Windows 95
LOD	Load file;	LOG	Log file;
LPC	Printer driver; TEKO	LRF	Linker response file; MS C/C++
LRP	Report; IBM Works for OS/2	LRS	Language Resource File; WordPerfect for Win
LSA	Lightscape Technologies ASCII;	LSB	Lightscape Technologies Binary;
LSP	LISP language source (autoLISP);	LSP	LISP source code file; Xlisp
LSS	Spreadsheet; Legato - IBM Works for OS/2	LST	Filelist; FRQView
LST	Keyboard macro; 1st Reader	LST	List file (archive index - compiler listfile);
LST	Listing (e.g. source code);	LST	Spool file; Oracle
LTM	Form (Lotus Forms); Lotus	LWD	Text document; LotusWorks
LWOB	Lightwave Object Format;	LWP	Word processor; IBM Works for OS/2
LYR	Lyrics (ASCII);	LZD	Difference file for binaries; LDiff 1.20
LZH	Archive; LHA/LHARC	LZS	Archive; LARC
LZW	Archive; LHWARP
M	Macro module; Brief	M	Source file for MatLab and Mathematica; MatLab - Mathematica
M_U	Backup of boot sector, FAT and boot dir; MazeGold	M11	Text file; MASS11
M3	MODULA 3 source code file;	M3D	3D animation macro;
M3U	MPEG-3 standard Playlist file; XING	M4	M4 preprocessor file; unix
MA	hDC products for MicroApp executable files; MicroApp	MA	Used by Mathematica for its notebooks; Mathematica
MA3	Macro; Harvard Graphics 3.0	MAC	Bitmap graphics file; Macintosh MacPaint
MAC	Macro file; Multi Edit	MAG	Woody Lynn's MAG graphics format; MPS Magro Paint System
MAH	Mahjongg Solitaire settings file; Mahjongg Solitaire 2.00	MAI	Mail; VAX
MAK	Makefile;	MAK	Project file; VB - VC ++
MAN	User guide (manual);	MAP	Color palette file;
MAP	Format data; Micrografx Picture Publisher	MAP	Linker map file;
MAP	Map; Atlas MapMaker	MAP	Map file (usually created by compilers);
MAP	Network map; AccView	MAR	Assembly program; VAX Macro
MAS	SmartMaster set; Freelance Graphics	MAT	Data; MatLab
MAX	MAX source code file;	MB	Memo field values for database; Paradox
MBK	Multiple index file backup; dBASE IV	MBX	Mailbox data; Eudora/ZERBERUS
MCC	Configuration file; Mathcad	MCD	MathCad file; MathCad
MCF	Font file; Mathcad	MCI	MCI command script; Media Control Interface
MCL	Multi Edit macro library; Multi Edit	MCP	Application script; Capsule
MCP	Printer driver; Mathcad	MCW	Text file; MacWrite II
MD	Archive; mdcd10.arc	MDA	Data; MS Access
MDA	MS Access system database; MS Access	MDB	Microsoft DataBase; Microsoft Access
MDL	Model; 3D Design Plus	MDL	Spreadsheet; CA-Compete!
MDM	Modem definition file; TELIX	MDR	Microdrive file; ZX Spectrum emuulator by g.a.lunter
MDS	Midi Session; Sound Imp.	MDT	Data table; MS ILink incremental linker
MDX	Multiple index file; dBASE IV	MDZ	Text description of music module; Cubic Player - Cross-View
ME	MultiEdit configuration; MultiEdit	ME	Text file READ.ME;
MEB	Macro Editor bottom overflow file; WordPerfect Library	MEC	MECCA source; Maximus
MED	Macro Editor delete save; WordPerfect Library	MED	Music format; MED/OctaMED
MEM	Macro Editor macro; WordPerfect Library	MEM	Memory variable save file; dBASE IV - FoxPro - Clipper
MEM	Memos datafile; Clarion	MEQ	Macro Editor print queue file; WordPerfect Library
MER	Macro Editor resident area (vakioalue); WordPerfect Library	MES	Macro Editor work space file; WordPerfect Library
MES	Message;	MET	Document; Omnipage Pro
MET	Macro Editor top overflow file; WordPerfect Library	MET	OS/2 graphics metafile; PICVIEW.EXE
MEU	Menu group; DOS Shell	MEX	Macro Editor expound file; WordPerfect Library
MEX	MEX file (executable command); Matlab	MF	Metafont file; TeX
MFF	MIDI; Cakewalk, MTPro 4	MFM	Music format; DMP
MGF	Font; Micrografx	MGF	Materials and Geometry Format;
MGX	Designer 4.1 Drawing; Designer 4.1	MIB	Snmp MIB file;
MID	Standard MIDI file; music synthetizers	MIFF	Magick Image File Format;
MII	Datafile; MicroStat-II	MIME	Message in MIME format (RFC822);
MIS	Mission, used by many games;	MIX	Object file; Power C
MK	Makefile;	MK	Makefile;
MK	Usually makefile;	MKE	Makefile; MS Windows SDK
MKG	Makefile;	MKI	Graphics format (Japan MKI);
MKI	Japanese graphics MAKIchan format; MagView 0.5	MKS	Data; TACT
ML3	Project; Milestones 3.x	MLB	Macro library file; Symphony
MLI	3DS Materials Libraries; 3D Studio	MM	Text file; MultiMate Advantage II
MMF	Mail message file; MS Mail	MMM	Multimedia movie file, RIFF RMMP format; MacroMind Director 3.x
MMO	Memo writer file; RapidFile	MMP	Output video format from Bravado board;
MND	Menu source; AutoCAD Menu Compiler	MNG	Map; DeLorme Map'n'Go
MNT	Additional (FPT) menu description file; FoxPro	MNT	Menu memo; FoxPro
MNU	Advanced macro file; HP NewWave	MNU	Menu; AutoCAD Menu Compiler - Norton Commander - Signature
MNU	Microsoft Mouse menu (for DOS apps);	MNX	Compiled menu file; AutoCAD
MNX	Main (DBF) menu description file; FoxPro	MNY	Account book; MS Money
MO?	Packed mail; FTN software	MOB	Device definition file; PEN Windows
MOD	MODULA-2 source code file; Clarion Modula-2	MOD	Modula language source;
MOD	Module -- used by Windows for DLL which implement DOS support; Win	MOD	Music format (Amiga module); DMP - ST - MDP - VP
MOL	MOD4WIN PlayList; Mod4Win	MON	Monitor description; ReadMail
MOV	Animation format (Mac); QuickTime	MOV	Movie file; AutoCAD AutoFlix
MP2	Mpeg audio file; xing	MP3	MPEG audio stream,layer 3; AWAVE, CoolEdit(+PlugIn)
MPA	MPEG audio stream,layer 1,2,3; AWAVE	MPC	Calender file; MS Project
MPEG	Animation format; MPEG Player	MPG	see MPEG;
MPL	MediaRack Midi Playlist; MediaRack	MPM	MathPlan macro; WordPerfect Library
MPP	Project file; MS Project	MPR	Generated executable menu file; FoxPro
MPT	Bitmap graphics (Multipage TIFF);	MPV	View file; MS Project
MPX	Compiled executable menu file; FoxPro	MRB	Multiple Resolution Bitmap graphics file; MS C/C++
MRK	Windows User Benchmark; Win95	MRS	Macro Resource file; WordPerfect for Win
MS	Microsoft antivirus report; MSAV	MSC	Microsoft C makefile;
MSDL	Manchester Scene Description Language;	MSG	Message base (e.g. HMB);
MSG	Message text file (ASCII);	MSG	ZVoice digitized voice file;
MSP	Bitmap graphics file; Microsoft Paint	MSP	Graphics format; Microsoft Paint
MSS	Manuscript text file; Perfect Writer - Scribble - MINCE - Jove	MST	Document; MS Test
MST	Minispecification file; Prosa	MST	Setup script file; MS Windows SDK
MSW	Text file; MS Word	MSX	CP/M archive; MSX
MTH	Math file; Derive	MTL	Wavefront;
MTM	Music format; MultiTracker	MTS	Master Track Pro Files; MTPro 4
MTV	MTV Ray Tracer graphic file;	MTW	Datafile; Minitab
MU	Quattro pro for DOS Menu definition file; Quattro Pro	MUS	Music format (MIDI in Doom);
MUS	Sound file; MusicTime	MVF	Stop frame file; AutoCAD AutoFlix
MVI	Movie command file; AutoCAD AutoFlix	MVW	Log file; Saber LAN
MWF	Animation; ProMotion	MWS	MWave DSP synths instrument; AWAVE
MXL	PackRat 5.0 support DLLs; PackRat 5.0	MXT	Data; MS C
MYP	Presentation; MM Make Your Point
NAM	Name Space Modules; Novell NetWare	NAP	Naplps file (VideoShow); EnerGraphics
NAPLPS	North American Presentation Layer Protocol Syntax;	NB	Text file; Nota Bene
NC	Graphics; netcdf	NC	Instructions for NC (Numerical Control) machine; CAMS
NC	Non-error checking preprosessed Goc source code; Geoworks	NCC	CNC (Computer Numeric Control) control file; CamView 3D
NCD	Norton Change Directory support file; Norton Commander	NDB	Network database; Intellicom - Compex
NDL	Nodelist file;	NDX	Index file; dBASE II - III - IV - dBFast
NEO	Raster graphics file; Atari Neochrome	NET	Network configuration/info file;
netCDF	Network Common Data Format;	NEW	New info;
NFF	Haines Neutral File Format;	NFF	WorldToolKit Neutral File Format;
NFO	Filioview database;	NFO	Help format; Netware Folio
NFO	Info file;	NG	Hypertext Database; Norton Guide
NGO	NG linker object file; NGML	NGS	NG compiler source file; NGC
NIL	NIL; Icon Hear-It	NITF	National Imagery Transmission Format;
NL	Norton Desktop Icon Library;	NLM	Netware loadable module; Novell Netware
NLS	National Language Support file; MS-DOS	NLX	Form; FormWorx 3.0
NOT	Notation;	NP	Project schedule (Nokia Planner); Nokia Planner
NPI	Source for DGEN.EXE intepreter; dBASE Application Generator	NSS	Norton screensaver module; NC - NDW Screen Saver
NST	Music module; Amiga Noise Tracker	NSX	Compound index file; SuccessWare SIX 3.00
NT	Startup files; Windows NT	NTR	Executable ASCII text file (strip header and rename); netrun31.zip
NTS	Executable ASCII text file (strip header and rename); netsend1.zip	NTS	Tutorial; Norton
NTX	Database index file; Clipper 5	NUF	Message for new users on their 1st call; Procomm Plus
NWS	Info text file (latest news) (ASCII);	NXT	Sound (NeXT format);
O	Object file; unix - Atari - GCC	O$$	Outfile; Sprint
O01	Typhoon vOice file; AWAVE	OAZ	Fax; NetFax Manager
OB	Object cut/paste file; IBM LinkWay	OBD	Microsoft Office Binder; MSOffice
OBJ	Compiled machine language code;	OBJ	Object code; Intel Recolatable Object Module
OBJ	Wavefront Object;	OBR	Object browser data file; Borland C++
OBS	Script; ObjectScript	OBT	Microsoft Office Binder Template; MSOffice
OBV	Visual interface; ObjectScript	OBZ	Microsoft Office Binder Wizard; MSOffice
OCF	Object Craft File; Object Craft	OCR	Incoming fax transcribed to text; FAXGrapper
OCT	Musical file; Pctalizer	OCX	New Custom Control's format in VB 4.0; Visual Basic
OCX	OLE custom control;	ODIF	Open Document Interchange Format;
ODL	Object Description Language;	ODL	Type library source; Visual C++
OFD	Form definition; ObjectView	OFF	Object File Format vector graphics;
OFF	Object File Format vector graphics file;	OFM	PostScript font description file;
OFN	MS Office documents; MSOffice	OHS	Outbound History; Bink/+
OKT	Music (8 channels); Oktalyzer	OKT	Music format; Oktalyzer
OLB	Object library; VAX	OLD	Backup file;
OLI	Text file; Olivetti	OOM	Swap file; Shroom
OPN	Active options; Exact	OPT	Delphi project options; Borland Delphi
OPT	Optimize support file; QEMM	OPT	"Options; name used by many programs for configuration information";
OPW	Organization chart; Org Plus for Windows	OPX	Inactive options; Exact
ORA	Parameter file; Oracle	ORG	Calendar file; Lotus Organizer
ORG	Origin plot; Microcal Origin	OTL	Outline font description; Z-Soft Type Foundry
OTL	Ventura Publisher's Type Foundry Outline Editor format;	OTX	Text file; Olivetti Olitext Plus
OUT	Output file;	OV1	Overlay file (part of program to be loaded when needed);
OV2	Overlay file (part of program to be loaded when needed);	OVD	Datafile; ObjectVision
OVL	Overlay file (part of program to be loaded when needed);	OVR	Overlay file (part of program to be loaded when needed);
P	Database PROGRESS source code; PROGRESS	P	PASCAL source code file;
P	Picture file; APPLAUSE	P	Rea-C-Time application parameter file; ReaGeniX code generator
P0?	Splitted archive UC2; SAS.EXE	P10	Tektronix Plot; GCGW
P16	Music (16 channels); ProTracker Studio 16	P22	Patch file (Patch22); Patch22
PA1	Worktable; PageAhead	PAC	SBStudio II Package or Song; SBStudio II
PAC	STAD Image (graphics ?);	PAD	Keypad definition; Telemate
PAK	Archive; Pak	PAL	Pallette file; Microsoft Draw - Win. Paintbrush - many
PAN	Printer-specific file (copy to coreldrw.ink); CorelDRAW	PAR	Parameter file; Fractint
PAR	PARTS application; Digitalk PARTS	PAR	Permanent output file; Windows 3.x
PAS	Pascal language source; Borland Pascal	PAT	Gravis Ultrasound Patch; Convert (c) Villena
PAT	Hatch patterns; AutoCAD - Photostyler	PAT	Vector fill files; CorelDRAW
PB	Fax; FAXability Plus	PB	Phonebook; WinFax Pro
PB	Proboard Conf. files; Proboard	PB	Setup file; PixBase
PB1	Document; First Publisher for Windows	PBA	Powerbasic BASIC source code; Genus
PBD	Phone book; FaxNOW! - Faxit	PBI	Powerbasic include file; Genus
PBI	Profiler Binary Input; MS Source Profiler	PBK	Microsoft Network Phone book; MSN
PBL	Powerbasic library; Genus	PBM	PBM Portable Bit Map graphics format; Jasc Media C.
PBM	Planar bitmap graphics; XLib	PBO	Profiler Binary Output; MS Source Profiler
PBT	Profiler Binary Table; MS Source Profiler	PC	Text file containing IBM PC specific info;
PC3	Custom palette; Harvard Graphics 3.0	PC8	ASCII text IBM8 character set; NewWave Write
PCB	P-CAD database; P-CAD	PCC	Cutout picture vector graphics; PC Paintbrush
PCD	Graphics format (Kodak Photo-CD);	PCD	Kodak Photo-CD Image graphics file (768x512); hpcdtoppm
PCF	Profiler Command File; MS Source Profiler	PCH	Patch file;
PCH	Precompiled header; MS C/C++	PCJ	Multimedia authoring tool graphics file; IBM's Linkaway-Live
PCK	Pickfile; Turbo Pascal	PCL	HP-PCL graphics data file; HP Printer Control Language
PCM	OKI MSM6376 synth chip PCM; AWAVE	PCM	PCM; Authorware
PCS	Microsoft PowerPoint picture package; MS PowerPoint - MS ClipArt Gallery	PCT	Bitmap graphics file; Macintosh b& w PICT1 - color PICT2
PCW	Text file; PC Write	PCX	PC paintbrush bitmap format; QPeg - Display - ZSoft - PC Paintbrush
PDA	Bitmap graphics;	PDB	Data; TACT
PDB	Packrat 5.0 data file; Packrat 5.0	PDF	Adobe's Portable Document Format; Adobe Acrobat Reader
PDF	Graphics file (ED-SCAN 24bit format);	PDF	Package Definition File;
PDF	PCAD Database Interchange Format; Pdifin.exe - Pdifout.exe	PDF	Print device information Netware;
PDG	Print Shop Deluxe data file;	PDL	Project Description Language file; Borland C++ 4.5
PDS	Pds graphics;	PDS	Planetary Data System Format;
PDS	Pldasm source code file (hardware assembly);	PDV	Printer driver; Paintbrush
PDW	Document; Professional Draw	PEB	Program Editor bottom overflow file; WordPerfect Library
PED	Program Editor delete save; WordPerfect Library	PEM	Program Editor macro; WordPerfect Library
PEQ	Program Editor print queue file; WordPerfect Library	PER	Program Editor resident area; WordPerfect Library
PES	Program Editor work space file; WordPerfect Library	PET	Program Editor top overflow file; WordPerfect Library
PEX	Proboard EXecutable file (Executed from PB); Proboard	PFA	PostScript Font File;
PFA	Type 3 font file (unhinted PostScript font);	PFB	Adobe Acrobat document; Adobe Acrobat Reader
PFB	PostScript font; Adobe Type Manager (ATM)	PFC	Text file; First Choice
PFK	Programmable function keys; XTreePro	PFM	Windows Type 1 font metric file;
PFS	Database (PFS:FILE) - text file (PFS:Write); PFS	PFT	Printer font; ChiWriter
PG	Page cut/paste file; IBM LinkWay	PGI	Printer Graphics File device driver; PGRAPH library
PGL	HP Plotter vector graphics format;	PGM	Graphics format (Portable GrayMap); JASC Media C.
PGM	Program; Signature	PGP	Support file; Pretty Good Privacy RSA System
PGS	Manual page; man4dos	PH	Optimized .goh file; Geoworks
PH	PERL header file;	PH	Phrase-table; MS C/C++
PHD	PolyHedra Database;	PHM	Phone book; DN - Lync
PHN	Phone list; UltraFax - QmodemPro	PHO	Phone database; Metz Phone for Windows
PHP	PHP source code (used to create dynamic web content)	PHR	Phrases; LogoScript
PIC	123 Vector graphics format; CShow - Alchemy - Paint (Pictor)	PIC	Bitmap graphics file; Macintosh b& w PICT1 - color PICT2
PIC	Lotus picture;	PIC	PIXAR picture file; SDSC Image Tool
PICT	Macintosh Picture;	PIF	OS/2 graphics metafile; PICVIEW.EXE
PIF	Program Information File; Windows 3.x	PIF	Vector graphics GDF format file (IBM mainframe computers);
PiM	Pascal Text Mode Image File; The Ultimate Draw	PIT	Compressed Mac file archive created by PACKIT; unpackit.zoo
PIX	Alias image file; SDSC Image Tool	PIX	Inset Pix;
PJ	Project; CA-SuperProject	PJT	Additional (FPT) project description file; FoxPro
PJX	Main (DBF) project description file; FoxPro	PK	PacKed bitmap font bitmap file (TeX DVI drivers);
PKA	Archive; PKARC	PKG	Installer script; Next
PKG	P-CAD database; P-CAD	PKT	Fido message packet; FTN software
PL	Palette; Harvard Graphics	PL	PERL source code file;
PL	Prolog source code file;	PL	Property List font metric file; TeX
PL1	Room plan; 3D Home Architect	PL3	Chart palette; Harvard Graphics 3.0
PLB	FoxPro library; FoxPro	PLB	P-CAD library; P-CAD
PLC	Add-in file (functions - macros - applications); Lotus 1-2-3	PLC	P-CAD database; P-CAD
PLL	Prelinked library; CA Clipper	PLM	DisorderTracker2 music module; AWAVE
PLN	Spreadsheet; WordPerfect for Win	PLT	HPGL plotter file vector graphics; AutoCAD
PLT	Output file for ploter;	PLT	P CAD: Output file editor for PCPLOT or PCPRINT; P CAD
PLT	Page Magic 2.0 paper format; Page Magic 2.0	PLT	Palette;
PLT	Table for .pll; CA Clipper	PLY	Data; PopMail
PLY	Presentation screen; Harvard Spotlight	PLY	ZipPack;
PM	Bitmap graphics; Presentation Manager	PM3	PageMaker 3.0 data file; PageMaker 3.0
PM4	Document; PageMaker 4	PM5	Aldus PageMaker 5.0 publication; Aldus PageMaker
PMC	Graphics; A4TECH Scanner	PMI	OS/2 V3 SVGA PMI-File; Svga.exe
PMM	Program file; Amaris BTX/2	PMP	PhotoMorph Project; PhotoMorph
PN3	Printer device driver; Harvard Graphics 3.0	PNG	Portable Network Graphics;
PNM	PBM Portable aNy Map graphics file;	PNT	Macintosh painting;
PNT	Pointlist segment; FTN software	PNT	QWK reader pointer file; MarkMail 2.x
POH	Optimized .goh file; Geoworks	POL	InnovMetric Software Polygon Models Format;
POP	Messages index; PopMail	POP	Pop-up menu object; dBASE Application Generator
POV	Raytraced graphics image; Persistence Of Vision	POW	Power Chords instrument/song file; Power Chords
PP	Amiga archive; POWERPACKER	PPB	Button bar for Print Preview; WordPerfect for Win
PPD	PostScript printer description file;	PPJ	Premiere Project; Premiere
PPK	Archive (using for many distributives); PPK	PPL	PolaroidPalettePlus ColorKey device driver; Harvard Graphics 3.0
PPM	Graphics format (Portable PixelMap); JASC Media C.	PPO	Preprocessor output; CA Clipper 5.*
PPP	Publication; PagePlus	PPS	Storyboard; Personal Producer
PPS	PowerPoint Show	PPT	General file extension; PowerPoint
PPT	Presentations; Microsoft	PR1	Packrat 4.0 data file; Packrat 4.0
PR2	Packrat 4.x data file; Packrat 4.x	PR2	Presentation; Aldus Persuasion 2.x
PR2	Printer driver; dBASE IV	PR3	PostScript printer driver; dBASE IV
PR3	Presentation; Aldus Persuasion 3.x	PRD	Printer driver;
PRE	Presentation; Freelance Graphics	PRE	Settings; Programmer's WorkBench - MS C/C++
PRE	Stork graphic file;	PRF	CheckIt Pro v1.0 data file; CheckIt Pro 1.0
PRF	Pixel Run Format graphics file; Improces - Fastgraph	PRF	Printer driver; dBASE IV
PRF	Profiler output;	PRG	Program; Atari
PRG	Program source; dBASE IV - FoxPro - Clipper 5 - dBFast	PRG	Program source code (e.g. Clipper language); CA Clipper
PRI	Printer definitions; LogoScript	PRJ	Borland C++ IDE project file; BC.EXE - BCW.EXE
PRM	Parameters;	PRN	Printer driver; Signature
PRN	Text file; Lotus 1-2-3 - Symphony	PRN	Usually printer output file;
PRO	Graphics profile file; DOS	PRO	Proboard conf. file; Proboard
PRO	"Profile; used by many programs to store configuration data";	PRO	Prolog language source;
PRO	PROLOG source code file;	PROJ	Project File (Interface Builder); NeXT
PRR	The Perfect Resume data file; Perfect Resume	PRS	Norton Viewer DLL file;
PRS	Presentation; Harvard Graphics Win	PRS	Printer Resource eg. fonts; WordPerfect for Win
PRS	Procedure; dBASE IV	PRT	P-CAD component; P-CAD
PRT	Printer driver; Dr.Halo	PRX	Compiled program; FoxPro
PS	Document in PostScript format; adobe	PSA	Archive (Pretty Simple Archive); PSA.OUT (GNU)
PSD	Periscope Debbuger Def file; Periscope	PSD	Photoshop bitmap file; Photoshop
PSE	see PSEG;	PSEG	Bitmap graphics; IBM printer Page SEgment
PSF	Outline PostScript printer font; ChiWriter	PSM	Music format (Protracker Studio Module); Protracker - MASI
PSM	Symbol table of IDE; Turbo Pascal	PSN	Presentation file for Sound Script; Win
PSP	Procedure; Prodea Synergy	PSQ	Premiere Sequence; Premiere
PST	Postbox file; BMail	PSW	File w/ passwords for any program/game; many
PT	Game crack; Player Tools	PT	Kodak Precition Color Management System;
PT3	Device driver; Harvard Graphics 3.0	PT3	Template; PageMaker 3
PT4	Template; PageMaker 4	PT5	Aldus PageMaker 5.0 publication template; Aldus PageMaker
PTB	Script; PubTech BatchWorks	PTL	Premiere Title; Premiere
PTM	Macro; PubTech BatchWorks	PTM	Music format;
PTM	Page Magic 2.0 template; Page Magic 2.0	PTR	OS/2 cursor image file; ICONEDIT.EXE
PTR	QWK reader pointer file; QMail	PTU	Performer Terrain Utilities;
PUB	Page template; MS Publisher	PUB	Public key ring file; Pretty Good Privacy RSA System
PUB	Publication; Ventura Publisher - 1st Publisher	PUT	Archive; PUT
PUT	Graphics format; WScan	PVD	Script; Instalit
PVL	Library; Instalit	PVT	Local Fidonet pointlist; FTN software
PW	Text file; Professional Write	PWL	Password List;
PWP	Text document; Professional WritePlus	PX	Paradox 3.0 file; Paradox 3.0
PXP	3DS Process file; 3D Studio	PXR	Pixiar Picio; AltamiraComposer
PY	PYTHON script file;	PYC	Compiled PYTHON script file;
PZD	Default settings; Pizazz Plus	PZI	Graphics format; PZP
PZO	Overlay file; Pizazz Plus	PZP	Palette; Pizazz Plus
PZS	Settings; Pizazz Plus	PZT	Transfer file; Pizazz Plus
PZX	Swap file; Pizazz Plus
Q0	Q0 graphic file;	QAG	Quick Access Group; Norton Desktop
QAP	Application; Omnis Quartz	QBE	Saved query (Query By Example); dBASE IV - Quattro Pro
QBO	Compiled query; dBASE IV	QBW	Spreadsheet; QuickBooks for Windows
QDn	Data file - segment n; Omnis Quartz	QDK	Backup of startup files created by Optimize; QEMM
QDV	Graphics file; Steve Blackstock Giffer	QEF	Query file; Q+E for MS Excel
QFX	Fax; QuickLink	QLB	Quick library; MS C/C++
QLC	ATM Type 1 fonts script; Adobe Type Manager	QLP	Printer driver; QuickLink
QM4	Options or services file; QMail 4.x Mail Door	QPR	Generated query program; FoxPro
QPR	Print queue device driver; OS/2	QPX	Compiled executable QBE query file; FoxPro
QRS	Equation Editor support file; WordPerfect for Win	QRT	Graphics format (QRT ray tracing);
QRY	Query; dBASE IV	QT	QuickTime movie (animation);
QTVR	QuickTime VR Movie;	QWK	QWK reader message file;
QXD	Document; QuarkXPress	QXL	Element library; QuarkXPress
R	RATFOR (FORTRAN preprosessor) file;	Rnn	Multi volume RAR archive; RAR
R2D	Reflex 2 datafile; Reflex 2	R8	Raw graphics file (one byte per pixel) plane one; PicLab
R8P	PCL 4 bitmap font file; Intellifont	RA	Remote Access conf. files; RA
RAD	2-op FM music; Reality AdLib Tracker	RAD	Radience;
RAL	Remote Access Language file; Remote Access	RAM	Ramfile; RealAudio
RAR	Archive; RAR	RAS	Graphics format; SUN Raster
RAT	Datafile (RATS);	RAW	HSI raw graphic file;
RAW	PCM Signed Raw Sound File;	RAW	QRT graphic file;
RAY	Rayshade;	RBF	Datafile; Rbase
RC	Configuration file; emacs	RC	Resource Compiler script file; MS C/C++ - Borland C++
RC	Resource Script; Resource Writer	RC	UUPC configuration files; UUPC
RC	Windows resource compiler script; RC.EXE -Resource WorkShop - OS/2	RCG	Netscape newsgroup file (netsc.rcg);
RDF	Compiled UIC source code; Geoworks UI Compiler	RDI	Device-independent bitmap file (RIFF RDIB format);
RDX	Datafile; Reflex	REC	Archivation protocol; ARCSERVE
REC	Datafile; EpiInfo	REC	Record file; Sprint
REC	Windows Recorder Macro File; WinRecorder	RED	Path info; Clarion Modula-2
RED	REDuced nodelist file; T-Mail nodelist Compiler	REF	Cross-reference;
REG	OLE Registration file; Windows 3.x	REG	Registration information or key;
REM	Remarks;	REM	Remarks definition; Sourcer
REP	QWK reader reply file;	REP	Report; Report Designer - CodeReporter - DataBoss
REP	Report file used by many applications;	REQ	File request; FTN Software
RES	Compiled resource; MS C/C++ - Borland C++	RES	DBASE resources; dBASE IV
RES	Windows compiled resource package; Win	REV	Revision file; Geoworks
REX	PharLab executable file (old format); PharLab	REX	Report definition; Oracle
REX	Rexx language source file; Rexx	REZ	Resource file;
RF	Sun raster graphics file;	RFT	DCA/RFT Revisable Format Text file; IBM DisplayWrite 4.0-5.1
RGB	SGI RGB image file (RAW); SDSC Image Tool	RGX	Symbol tables etc. info; ReaGeniX code generator
RH	Resource header file; Borland C++ 4.5	RH	Windows resource file header; RC.EXE
RI	Data; Lotus 1-2-3	RIB	Graphics (Renderman Interface Bytestream); 3D Reality
RIC	Fax; Ricoh	RIF	RIFF bitmap graphics (Resource Interchange File Format); Fractal Design Painter
RIP	TeleGrafix Remote Imaging Protocol; Maximus 3.0	RIX	Graphics (ColoRIX Image File); ColoRIX
RL4	Bitmap graphics;	RL8	Bitmap graphics;
RLA	Wavefront raster image file; SDSC Image Tool	RLB	Data hgw.rlb; Harvard Graphics Win
RLC	Graphics 1bit/pixel scanner output;	RLD	Norton Commander 5.0 temp file; NC 5.0
RLE	Utah Run Length Encoded rasterfile graphic file; SDSC Image Tool	RLZ	REALIZER source code file; CA-Realizer
RMI	Windows alternate synthesized sound format; RIFF RMID format	RMK	Make file; CA Clipper - RMAKE
RN	XPL program for Nota Bene users;	RND	Rendering Slide; AutoCAD AutoShade
RNO	Runoff file; VAX	ROL	FM music Adlib Music File; Roland
ROM	Read Only Memory image in emulators, AONs, etc.;	RPB	Data report file used by CP Backup; CP Backup
RPD	Database; RapidFile	RPF	AutoCAD pattern; ACAD
RPL	Text document; Replica	RPT	Report file used by many applications;
RS	Data file; Amiga Resource - Reassembler	RS_	Resource fork of a Macintosh file; Mac-ette
RSC	Resource file; ViewMax - many	RSL	Resource Library used by PC Tools for Windows; PC Tools - Win
RSP	Responce File; OS/2	RSP	Responce file (text file containing input expected by eg. LINK);
RTF	Rich Text Format text file (help file script); many - MS Word	RTFD	RTF-Packet; NeXT
RTL	HP RTL graphic file;	RTL	Run-Time library; Norton Utilities
RTL	Text file;	RTP	RTPatch software update package data file; Pocket soft patch
RTS	Realizer executable file;	RTS	Runtime library file; CA-Realizer
RUL	Echo-conference rules;	RUN	PC Tools for Windows batch file; PC Tools
RUS	Russian text;	RV	Mobile pricelist data file; Mobile
RVW	Review;	RWS	Borland Resource Workshop symbol file; Resource Workshop
RWS	Resource Workshop data file; Borland C++	RWX	Criterion RenderWare;
RWX	MEME Shape File;	RWX	Script; RenderWare
RXD	Reflex 1 datafile; Reflex 1
S	ASSEMBLY source code file; unix	S	Multi Edit macro file source; Multi Edit
S$$	Temporary sort file; Sprint	S1K	S1000 Simnet Format;
S3I	Digiplayer/ST3 Sample File; Digiplayer - ST3	S3M	Music (16 channels); Scream Tracker 3.0 - DMP
SA?	Packed mail; FTN software	SAF	see SAIF;
SAIF	Spatial Archive Interchange Format;	SAL	Datafile; SORITEC
SAM	Ami Pro data file; Ami Pro	SAM	Text file; Samna - Lotus Ami/Ami Pro
SAR	Archive; SAR	SAT	ACIS;
SAV	Backup file (saved file);	SAV	Configuration;
SAV	Saved game situation;	SB	Audio file (signed byte);
SB	Raw Signed Byte (8bit) data; AWAVE	SB	Raw Signed PCM Byte 8bit data; AWAVE
SBD	Storyboard; Storyboard Editor	SBI	Sound Blaster Instrument file (Creative Labs);
SBK	Emu SoundFont Bank (AWE32 Bank); Convert (c) Villena	SBL	Stony Brook Pascal library; SB Pascal
SBP	DML program; Superbase 4	SBR	Support file; Source Browser
SBT	Notes related to record; Suberbase 4 Windows	SC	Display driver; Framework II
SC	PAL script; Paradox	SC	Script; Borland Paradox
SC3	Renamed dBASE III screen mask file; dBASE IV	SC3	Screen device driver; Harvard Graphics 3.0
SCA	Datafile; SCA	SCC	Text file;
SCD	SCODOL film recorder (Scan Conversion Object Description Language); SCODOL	SCF	Multimedia show; ScoreMaker
SCF	Spelling checker configuration file; Symphony	SCH	Project schedule; Schedule Publisher
SCH	Scheme; P CAD - Orcad	SCI	Fax; SciFax
SCI	System Configuration Information;	SCM	Scheme source code file;
SCN	SCeNe RTrace;	SCN	Screen file; Kermit
SCO	High score;	SCO	High score;
SCP	Script; BITCOM	SCR	Any other screen system;
SCR	DEBUG source code file; DOS Debug	SCR	Forth screen (source) file; Forth
SCR	Screen - screen snapshot; dBASE IV - Procomm Plus	SCR	Screen font; LogoScript
SCR	Screen saver; Windows 3.x	SCR	Screen snapshop;
SCR	Script file source; TeleMate - Kermit - 1st Reader	SCT	Additional (FPT) screen description file; FoxPro
SCX	Chart; Stanford Chart	SCX	Graphics format; ColoRIX
SCX	Main (DBF) screen description file; FoxPro	SCY	Security file; ReaGeniX
SD	Sound Designer I audio file; AWAVE	SDA	Fidonet's Software Distribution Network file archive description;
SDF	Source definition file; Sourcer	SDF	System Data Format file (fixed lenght ASCII text);
SDI	Software Distribution Network Info file;	SDK	Roland S-550/S-50/W-30 Disk Image;
SDL	Alias Wavefront Scene Description Language;	SDML	Spacial Data Modeling Language;
SDN	Software Distribution Network compressd file archive; pak251.exe	SDR	SmartDraw File; SmartDraw Pro
SDS	MIDI Sample DUMP Standard File;	SDTS	Spatial Data Transfer Standard;
SDW	Ami Draw Symbol File;	SDX	Sample DUMP Exchange File;
SEA	Self-Extracting compressed Macintosh file Archive;	SEC	----- compressed file;
SEC	Diskreet encrypted file; Diskreet	SEC	Secret key ring file; Pretty Good Privacy RSA System
SEC	Secured animation file; Disney Animation Studio	SEP	Printer separator page;
SEQ	Atari animation file;	SEQ	Sequential Instruction File; Bubble Chamber
SES	Session info; Clarion Modula-2	SET	Configuration file; 1st Reader
SET	Driver sets created by Install; Symphony	SET	Extension used by Norton Backup and CPS Backup for setup info; Norton Backup - CPS Backup
SET	Setup options file;	SF	IRCAM Sound File; CSound package - MixView sound sample editor
SF	WPS attribute storage (OS/2 WorkPlace Shell) wp_root.sf; OS/2 WorkPlace Shell	SF2	Emu SoundFont Bank v2.0 file; AWAVE
SFB	HP Soft font (obsolete under Windows);	SFD	SoundStage Data file; AWAVE
SFF	Scene File Format;	SFI	Graphics; SIS Framegrabber
SFI	Printer font (HP LaserJet landscape); Ventura Publisher	SFL	PCL 4 bitmap font (landscape); landscape - Intellifont -Ventura Publisher
SFN	Font; SPX	SFO	Bitstream font file - fontware format;
SFP	PCL 4 bitmap font; portrait - Intellifont - Ventura Publisher	SFR	Sonic Foundry Sample Resource; AWAVE
SFS	PCL 5 scalable font file; Intellifont	SFT	Screen font; ChiWriter
SFX	SFX (self-extracting archives) script; RAR	SG1	Graphics; Stanford Graphics
SGF	Document with graphics; Starwriter	SGI	Graphics file; IRIS - Silicon Graphics
SGP	Statistics; STATGRAPHICS Plus	SGT	Save/get keyboard macro; Signature
SH	ASCII archive; SHAR	SH	Unix shell script;
SH3	Presentation; Harvard Graphics 3.0	SHAR	Archive; UNSHAR (Unix)
SHB	Background; CorelShow	SHG	Segmented Hyper-Graphic;
SHK	Apple II archive; SHRINKIT	SHM	Shell macro; WordPerfect Library
SHP	Shape file and source file for text fonts; AutoCAD	SHR	see SHAR;
SHT	HTML format for WWW; NetScape	SHW	Presentation; Harvard Graphics 2.0 - CorelShow
SHW	Slide show; WordPerfect Presentations	SHX	Shape entities; AutoCAD
SIF	Setup Installation Files info; Windows NT Setup	SIG	Current program settings; Signature
SIG	Signature file; ThunderByte AntiVirus - PopMail	SIK	Backup file (Sicherungskopie); MS Word
SIT	Archive (Macintosh); STUFFIT	SKY	SYLK Spreadsheet file (used by Multiplan);
SL	S-Lang source code file;	SLB	P-CAD library (symbols); P-CAD
SLB	Slide library; AutoCAD	SLC	SALT (script from Telix) compiled code; Telix
SLD	Slide; AutoCAD	SLI	Slide; MAGICorp Slide Service
SLK	MS Excel import format; MS Excel	SLK	SYLK Symbolic Link format data file; MultiPlan
SLL	Sound data file;	SLT	SALT Script Application Language for Telix script source; Telix
SLV	Solution for any game; many	SM	Maillist; SoftSpoken Mailer
SM	Script; ScriptMaker	SM	SMALLTALK source code file;
SM	Text file; Samna Word	SMF	Fax; SMARTFAX
SMM	Ami Pro Macro File; Ami Pro	SMN	Font (ParaGraph's WorkScript format);
SMP	Sample (sound file);	SMP	Samplevision File; Samplevision
SMT	Text file; Smart Ware II	SN	Compressed song file; Sound Club editor
SND	Digitized sound file; Macintosh/ATARI/PC	SND	Power Chords drum sound file; Power Chord
SNG	Song (midi sound); Midisoft Studio - Prism	SNO	SNOBOL4 source code file;
SNP	Book-shelf for .BOO; READIBM	SNP	Output video format from Computer Eyes equipment;
SOL	Solution eg. game walkthroughs;	SOM	Network serial numbers; Quattro Pro
SOM	Sort information; Paradox	SON	Song; SBStudio II
SOU	SBStudio II Sound File; SBStudio II	SOU	Sound data (sound tool);
SP	Archive (unix); SPLINT	SPC	Program; MS Multiplan
SPC	Temporary file; WordPerfect for Win	SPD	Scalable font; Speedo - Harvard Graphics 3.0
SPF	Slide presentation file; EnerGraphics	SPG	Glossary; Sprint
SPI	Graphics (Siemens and Philips scanner);	SPIFF	Still Picture Interchange File Format;
SPL	Archive; SPLINT	SPL	Customized printer driver; Sprint
SPL	Personal spell dictionary; Signature	SPL	Print spooling file; Windows 3.x
SPL	Sample;	SPM	Data wp{wp}.spm; WordPerfect
SPP	Printer file; Sprint	SPR	Document letter; Sprint
SPR	Generated executable screen file; FoxPro	SPR	Sprite;
SPR	Story Board sprites;	SPS	Screen driver; Sprint
SPS	SPSSx source code file; VAX/VMS	SPT	Data support file (MITAC disk/system management utility pack); MITAC disk/system management utility pack
SPT	SPITBOL source code file;	SPW	Worksheet; SigmaPlot
SPX	Compiled executable screen file; FoxPro	SQD	Squish message base; Squish
SQI	Squish message base index; Squish	SQL	SQL language code; Any SQL database
SQL	Squish message base lastread pointers; Squish	SQZ	Archive; SQUEEZE
SQZ	FOXPRO Squeeze file; FOXPRO	SRC	Multi-edit source; Multi-Edit
SRC	Source; DataFlex	SRF	Sun Raster File graphics file;
SRP	Script; QuickLink	SS	Bitmap graphics; Splash
SS	Screen saver; DN	SSD	Datafile; SAS/PC
SSP	Datafile; SAS Transport	SST	AVHRR graphic file;
ST	Instrument library; Scream Tracker	ST	SMALLTALK source code file; Little Smalltalk
ST	Stamp; NeoPaint	STA	Data file; Statistica
STA	Saved state; Reflection 4.0	STA	Stack; Spinmaker Plus
STB	Stub library; Genus GX Kernel	STD	Standard (something..); LogoScript
STD	State Transition Diagram graphic file; Prosa	STF	Archive; SHRINKTOFIT
STL	Stereolithography Interface Format;	STM	Music format (4 channels) (Scream Tracker Module); ST - DMP
STM	State Transition Diagram model file; Prosa	STO	Pascal stub OBJ file; Genus GX Kernel
STR	Gate3 table structure file;	STR	Structure list object file; dBASE Application Generator
STS	Music format (Scream Tracker Song); ST 2.0-2.3	STS	Project status info; MS C/C++
STW	Data file; SmartTerm for Windows	STX	Electronic book; SmarText
STX	Music format;	STX	Tax form; CA-Simply Tax
STY	"Ami Pro Template (Style); used by other programs for `styles`"; Ami Pro	STY	Style library or sheet; many
SU?	Packed mail; FTN software	SUI	SUIT library; Simple User Interface Toolkit
SUM	Summary;	SUN	Sun rasterfile graphics file;
SUP	Supplementary dictionary; WordPerfect for Win	SVD	Autosave file for document; MS Word
SVG	Autosave file for glossary; MS Word	SVQ	Music format;
SVS	Autosave file for style sheet; MS Word	SVW	Super Video Windows; Conversion Artist
SVX	Interchange, 8SVX/16SV; AWAVE	SW	Raw Signed Word (16bit) data; AWAVE
SWG	SWAG Pascal Snippets file; SWAG	SWP	Document backup; Sprint
SWP	Swap file;	SXP	3DS Process file; 3D Studio
SY1	SmartPix symbol library; Ami Pro	SY3	Harvard Graphics format;
SY3	Symbol file; Harvard Graphics 3.0	SYD	Backup of startup files created by QEMM (?) autoexec.syd;
SYD	Sysedit backup file; Sysedit	SYM	Compiler symbolic information file;
SYM	P-CAD component (symbols); P-CAD	SYM	Precompiled headers; Borland C++
SYM	Program symbol table; Power C - MS ILink incremental linker	SYM	Symbol file; Harvard Graphics 2.0 - MS Windows SDK
SYN	SDSC Synu image file; SDSC Image Tool	SYN	Synonym file; MS Word 5
SYS	Datafile; SYGRAPH - SYSTAT - SPSS/PC	SYS	System file - device driver or hardware configuration info; DOS
SYW	Graphics file (symbol); Harvard Graphics Win	SYW	Yamaha SY-85/SY-99 Wave File; Convert (c) Villena
T	Archive without compression (tape); tar	T	TADS source;
T	Tester symbol table; ReaGeniX code generator	T?H	Turbo Help file (Pascal, C, Assembler, ...); Borland Thelp
T44	Temporary file for Sort or Index; dBASE IV	T64	Program; C64S emulator
TAG	Query tag name; DataFlex	TAH	Help file for Turbo Assembler; Borland C++
TAL	Adobe Type Align; Adobe	TAL	Text illustration; TypeAlign
TAP	Tape file; ZX Spectrum emulator by g.a.lunter	TAR	Archive; TAR
TAZ	Archive; WinZipNT - TAR - COMPRESS	TB1	Font file; Borland Turbo C
TB2	Font file; Borland Turbo C	TBF	Fax; Imavox TurboFax
TBK	FOXPRO template backup file; FOXPRO	TBK	Memo backup; dBASE IV - FoxPro
TBK	Toolbook; Asymetrix ToolBook	TBL	Aldus TableEditor file; TableEditor
TBL	Gate3 table file;	TBL	Graphics file (native format); PageMaker TableEditor
TBL	"Short for Table; used by many programs";	TBL	Table of values; OS/2
TBR	Norton Desktop custom toolbar; NDW	TBS	Text elements ?? (Textbausteine); MS Word
TBX	Table; Project Scheduler 4	TC	Configuration; Turbo C - Borland C++
TCH	Help file; Turbo C - Borland C++	TCL	Tool Command Language source code; Swat
TCW	Drawing; TurboCAD for Windows	TD	Config from Turbo Debugger; Turbo Debugger
TD0	Compressed diskette in a file; Teledisk	TD2	Configuration file; Turbo Debugger for Win32
TDB	Database; TACT	TDDD	Imagine Object File Format;
TDF	Speedo font file;	TDF	Typeface definition file; Speedo
TDH	Help file for Turbo Debugger; Borland C++	TDK	Keystroke recording file; Turbo Debugger
TDR	Contens of Arvid tape;	TDS	Symbol table; Turbo Debugger
TDW	Configuration file; Turbo Debugger for Windows	TEF	Fax; Relisys TEFAX
TEL	Host file; Telnet	TEM	Input template; IconAuthor
TEM	Turbo Editor Macro Language script; Borland C++	TET	Tetris results; DN
TEX	Datasheet; Idealist	TEX	TeX text file; Scientific Word - TeX
TEXT	Text file;	TF	Configuration; Turbo Profiler
TFA	Area file; Turbo Profiler	TFC	Catalogue file; Tobi's Floppy Cataloguer
TFH	Help file for Turbo Profiler; Borland C++	TFM	Tagged font metric file; Intellifont
TFM	TeX Font Metric file; TeX	TFS	Statistical information; Turbo Profiler
TG1	Project file; On Target	TGA	Targa True Color bitmapped format;
TGZ	Archive; WinZipNT - TAR - GNUzip	TH?	Packed mail; FTN software
THE	Windows'95 Desktop Theme; Microsoft Plus	THM	Picture Publisher or PhotoMagic Thumbnail;
THS	Thesaurus dictionary; WordPerfect for Win	TIC	FTN special file with assotiated file description; ALLFIX
TIF	see TIFF;	TIFF	TIFF (tagged image format file) bitmapped file; Alchemy - PhotoStyler -PageMaker - CorelDRAW
TIL	Fuzzy logic knowledge base; Togai InfraLogic Fuzzy-C Compiler	TIS	Tile set; MahJongg 3.0
TJL	Backup file; VAXTPU editor	TLB	Interoperaility Type Library; Win95
TLB	Reference table; Bubble Chamber	TLB	Text library; VAX
TLB	Type library; Visual C++	TLC	Compiled Tool Command Language source code; Swat
TLD	Disk Image; Teledisk	TLP	Project; TimeLine
TMF	Tagged Font Metric file; WordPerfect for Win	TMO	ZTG global optimizer default output file; Zortech C++
TMP	Temporary file;	TMS	TeleMate compiled script; TeleMate
TOC	Table Of Contents text file (ASCII);	TOK	Borland C++ 4.x reserved word list; BCW.EXE
TOS	Self-extracting file archive (Atari ST);	TP	Session-state file; Turbo Profiler
TP	Turbo Pascal cfg file; Turbo Pascal	TP3	Template; Harvard Graphics 3.0
TPB	Downloadable PCL Soft font file backup; HiJaak	TPF	Downloadable PCL Soft font file; HiJaak
TPH	Help file; Turbo Pascal	TPL	Resident units library; Turbo Pascal
TPL	Template; Harvard Graphics 2.0	TPL	Template file; GoldEd -ITrack
TPP	Protected Mode Units; Borland Pascal 7.0	TPU	Borland Pascal DOS Mode Library; Borland Pascal
TPU	Command file (VAXTPU editor); VAXTPU editor	TPW	Borland Pascal Windows Library; Borland Pascal
TPW	Session-state file; Turbo Profiler for Windows	TPZ	Archive; TAR - GNUzip
TR	Man page input suitable for troff -man; cawf2.zip	TR	Session-state settings; Turbo Debugger for DOS
TR2	Session-state settings; Turbo Debugger for Win32	TRC	Debug support file; Power CTrace
TRE	Directory tree file; PC-Tools	TRIF	Tiled Raster Interchange Format;
TRK	Track (i.e. video sequence), used by many games;	TRM	Terminal settings; Windows 3.x
TRN	Translation support file; Quattro - Clarion	TRS	Executable file; Micrografx
TRU	True Basic source file;	TRW	Session-state settings; Turbo Debugger for Windows
TSK	Microsoft Multimedia Task Application; Win95	TSM	Turbo Assembler Manual; TASM for OS/2
TST	Printer test file; WordPerfect for Win	TSV	Tab Separated Values;
TTF	TrueType Font file;	TU?	Packed mail; FTN software
TUD	The Ultimate Draw file; The Ultimate Draw	TUT	Tutorial;
TV	Table view settings; Paradox	TVn	Overflow file above insert point in Doc n; WordPerfect for Win
TVF	Table view settings; dBASE	TXF	Archive; TAR and FREEZE
TXI	Support file; TeX	TXT	Common name for ASCII text file;
TXW	Yamaha TX-16W Wave File; Convert (c) Villena	TYM	Time Stamp (PageMaker 4); PageMaker 4
TZ	Archive; TAR - COMPRESS	TZB	Archive; TAR - COMPRESS - BTOA
U8	Sample;	UB	Raw Unsigned Byte (8bit) data; AWAVE
UC2	Archive; UC II	UCN	New archive; UC II
UDF	Filter; Photostyler	UDW	Raw Unsigned DWord data; AWAVE
UE2	Encrypted archive; UC II	UHS	Universal Hint System (binary file);
UI	Espire source code file; Geoworks UI Compiler	UI	User interface; Sprint
UIF	Long prompts for windows; WordPerfect for Win	UIH	Espire header file; Geoworks UI Compiler
UL	ULAW audio file;	ULD	Information about uploaded files; Procomm Plus
ULT	Music; UltraTracker	UMB	Backup file; MemMaker
UNI	Datafile; Forecast Pro	UNI	Music format; UNIMOD - MIKMOD
UNX	Text file containing UNIX specific info;	UPD	Update data; dBASE
UPD	Update info (new features in program);	UPO	Compiled update data; dBASE
URT	Utah Raster Toolkit;	USE	Log file;
USP	Printer font with USASCII extended character set; PageMaker	USR	User database file; Procomm Plus - Turbo C++ tour
UU	Encoded file (ASCII); UUENCODE/UUDECODE	UUE	Encoded file (ASCII); UUENCODE/UUDECODE
UW	Raw Unsigned Word 16bit data; AWAVE	UWF	UltraTracker WaveSample; UltraTracker
V	Consistency check support file; ReaGeniX code generator	V	Main input file for an image; Vivid 2.0
V8	Covox 8bit file; AWAVE	VAL	Validity checks and referential integrity; Paradox for Windows
VAL	Values list object file; dBASE Application Generator	VAN	Animation; VistaPro
VAP	Value Added Process; NetWare 2.xx	VAR	Variable file; IconAuthor
VBR	Visual Basic Custom Control file; Visual Basic	VBX	Visual Basic eXtension; Visual Basic
VBZ	Visual Basic Setup Wizard Template; Setup Wizard	VC	Include file with color definitions; Vivid 2.0
VC	Spreadsheet; VisiCalc	VCA	Visual Clip Art;
VCR	VCR drivers for Arvid;	VCW	Visual workbench information; MS Visual C++
VCX	Spreatsheet; VisiCalc Advanced	VDA	Bitmap graphics;
VDO	Story Board video image; Story Board	VDR	Drawing; ComputerEasy Draw
VEW	GroupWise for Windows; Win	VEW	View file; Clipper 5 - Lotus Approach
VFA	FontLab Database file; FontLab	VFM	Ventura Font Metrics file;
VFM	Voting Form; Voter	VFN	Voting Form for Customers; Voter
VGA	VGA display driver;	VGA	VGA display font;
VGD	VGA display driver; Generic CADD	VGR	Graphics file; Ventura Publisher
VI	Graphics file; Jovian Logic VI	VI	Watcom editor script; VI.EXE
VIC	see VICAR;	VICAR	Graphics (Video Image Communication and Retrieval);
VID	Bitmap graphics (YUV12C M-Motion Frame Buffer);	VID	Graphics format; Word& Deed
VID	MS-DOS Shell Monitor file; MS-DOS 5	VID	Screen device driver; Word
VIF	see VIFF;	VIFF	Khoros Visualization Image File Format; SDSC Image Tool
VIK	Graphics format (VIKING);	VIR	Virus or infected file;
VIS	VIS graphics file;	VLM	Virtual Loadable Module; Netware
VM	Virtual Memory file; Geoworks	VMC	Virtual memory configuration; DOS/4GW PM 32X DOS Extender
VMF	Font characteristics; Ventura Publisher	VMS	Text file containing VMS specific info;
VO	Include file with object definition; Vivid 2.0	VOC	Sound format (Creative Lab's Sound File); PlayVoc
VOF	Object folder; VZ Programmer	VOX	Dialogic adpcm file; AWAVE, CoolEdit
VP	3DS Video posting; 3D Studio	VPF	Vector Product Format;
VPG	Graphics file; VPGraphics	VPH	Virtual Pascal Help; VP/OS2
VPI	Virtual Pascal Unit; VP/OS2	VRM	Overlay file; QuattroPro
VRM	Visual rexx source; WATCOM VREXX	VRML	Virtual Reality Modeling Language; NetScape
VRP	Project; WATCOM VX№Rexx	VRS	Video Resource eg. video device driver; WordPerfect
VS	Include file with surface definition; Vivid 2.0	VSD	Diagram; Shapeware Visio
VSD	Visio drawing; Visio	VSM	Simulation model; VisSim
VSP	Sprite; SPX	VSS	SmartShapes file; Shapeware Visio
VSS	Visio Template; Visio	VST	Truevision Vista graphics file;
VST	Visio Template; Visio	VUE	Animation; 3D Studio
VUE	View; dBASE IV - FoxPro	VW	Text file; Volkswriter
VWR	File viewer file; PC Tools	VXD	Windows 3.x virtual device driver; Windows 3.x
W	Word chart file; APPLAUSE	W01	Yamaha SY-series wave files; AWAVE
W01	Yamaha TX16W wave file; AWAVE	W30	Printer font; AST TurboLaser - Ventura Publisher
W31	Startup file; Windows 3.1	W40	Something for Windows95 (e.g. config.w40); Win95
W44	Temporary file for Sort or Index; dBASE	W95	Something for Windows95; Win95
WAD	War Allocation Daemon; Doom - Doom2	WAS	ProComm Script File (source code); ProComm
WAV	Sound format (Microsoft Windows RIFF WAVE); Media Player	WAX	ProComm compiled script; ProComm
WB1	Notebook; Quattro Pro	WB2	Spreadsheet; Quattro Pro
WBF	MS Windows Batch File; Catch	WBK	Document/workbook; WordPerfect for Win
WBT	Norton Desktop; Norton Desktop	WBT	Wilsonware Batch file; Winbatch
WCD	Macro token list; WordPerfect for Win	WCH	WordPerfect Macro Facility; WP
WCM	Data transmission file; MS Works	WCM	Macro; WordPerfect for Win
WCP	Product information description; WordPerfect for Win	WD	InfoSelect Data file;
WDB	Database; MS Works	WE?	Packed mail; FTN software
WEB	WEB source code file;	WebOOGL	Web Object Oriented Graphics Library;
WFB	Turtle Beach WaveFront Bank; AWAVE	WFD	Turtle Beach WaveFront Drum; AWAVE
WFM	Form object; dBASE Form Designer	WFN	Font; CorelDRAW
WFP	Turtle Beach WaveFront Prog.; AWAVE	WFX	Data file; Winfax
WG1	Worksheet; Lotus 1-2-3/G	WG2	Worksheet; Lotus 1-2-3 for OS/2
WID	Width table; Ventura Publisher	WIN	Window file; FoxPro - dBASE
WIZ	Page wizard; MS Publisher	WK1	Spreadsheet; Lotus 1-2-3 version 2.x - Symphony 1.1+
WK3	Spreadsheet; Lotus 1-2-3 version 3.x	WK4	Spreadsheet; Lotus 1-2-3 version 3.4
WKB	Document; WordPerfect for Win	WKE	Spreadsheet; Lotus 1-2-3 educational version
WKI	Spreadsheet format; Lotus 123 2x	WKQ	Spreadsheet; Quattro
WKS	Spreadsheet; Lotus 1-2-3 version 1A - Symphony 1.0 - MS Works	WKS	Workspace; Xlisp
WKZ	Spreadsheet format; Dos Navigator	WLK	Graphics; Virtus Walkthrough
WLK	Walk Through for any game; many	WMC	Backup of startup files by Windows MathCad autoexec.wmc; MathCad
WMC	Macro file; WordPerfect for Win	WMC	Text file; WordMARC
WMF	Windows MetaFile vector graphics;	WMP	Graphics (Windows Magic Icon Palette);
WN	Text; NeXT WriteNow	WNF	Corel Draw Font File; CorelDraw
WOA	Swap file; Windows 3.x	WOC	Organization; Windows OrgChart
WOW	Music (8 channels); Grave Mod Player	WP	Word Perfect Format; WP
WP5	Document; WordPerfect 5.x	WPD	Document; WordPerfect 6.0 - PFS:WindowWorks
WPD	Windows printer driver (uninstallable); Windows	WPF	Fax; WorldPort
WPF	Form; WordPerfect	WPF	Document - Word Perfect Format; WordPerfect 4.2-6.6 for DOS
WPG	WordPerfect Graphics vector graphics; DrawPerfect	WPJ	Watcom C/C++ IDE project; IDE.EXE
WPK	Keyboard Definition; WordPerfect 5.x-6.x for DOS	WPK	Macros; WordPerfect for Win
WPL	MediaRack Wave Playlist; MediaRack	WPM	Macros; WordPerfect
WPS	Text document; MS Works	WQ!	Compressed spreadsheet; Quattro Pro
WQ1	Spreadsheet; Quattro Pro	WR1	Spreatsheet; Symphony 1.1 - 1.2 - 2
WRD	Template; Charisma	WRI	Write editor format; Write - WinWord
WRK	Spreadsheet; Symphony 1.0	WRP	Archive; Amiga WARP
WRS	Windows Resource eg. printer driver; WordPerfect for Win	WS	APL Worksheet;
WS	Text file; WordStar 5.0-6.0	WS2	Text file; WordStar 2000
WSD	Document; WordStar	WSP	Workspace; Fortran PowerStation
WSQ	Wavelet-packet Scalar Quantization Format;	WSRC	X-wais source;
WST	Text file; WordStar	WWB	Button bar for document window; WordPerfect for Win
WWK	Keyboard layout; WordPerfect for Win	WXP	Document; EXP for Windows
X	Archive; X1.EXE	X	AVS X image file; SDSC Image Tool
X	LEX source code file;	Xnn	Secondary indexes; Borland Paradox
X3D	x3d and xdart Formats;	XBM	X11 Bitmap graphics file;
XCK	Extended crack;	XCK	Extended crack file (usually text);
XCL	Xtree for Windows Script file; Xtree for Win	XDF	OS/2 extended disk format image; XDFCOPY.EXE
XDM	Directory Manipulator for 32-bit Protected Mode; Xenotech Research Labs	XFN	Printer font; Xerox 4045 - Ventura Publisher
XFR	Ventura Publisher Bitmap Editor Font file;	XFT	24 pin printer font; ChiWriter
XI	Fast Tracker 2 instrument file; AWAVE	XI	Fastracker 2.0 Instrument File; Fastracker 2.0
XLA	Add-in macro sheet; MS Excel	XLA	XLib Archive; xlibpas2.zip
XLB	Excel Toolbar; MS Excel	XLC	Excel Chart; MS Excel
XLD	Excel Dialog; MS Excel	XLK	Excel Archive; MS Excel
XLL	Excel Dynamic Link Library; MS Excel	XLM	Excel Macro File; MS Excel
XLS	Excel Spreadsheet; MS Excel	XLT	Excel Template; MS Excel
XLT	Translation table; Lotus 1-2-3 - Symphony - Procomm Plus	XLV	Excel Module; MS Excel
XLW	Excel Workbook; MS Excel	XM	Fast Tracker 2 extended module; AWAVE, Mod4Win, FastTracker, ImpulseTracker
XM	Music format; FastTracker - Cubic Player	XMI	Compressed eXtended MIdi music;
XNF	Standard Network File form;	XOF	RenderMorphics;
XP	eXtended Pattern; FastTracker 2.0	XPM	X11 Pixel Map graphics file;
XQT	Executable file; Waffle	XQT	Macro sheet; SuperCalc
XRF	Cross-reference file;	XTB	External translation table; LogoScript
XTP	XTreeGold overlay; XTreeGold	XWD	X Window System window dump image graphics file; SDSC Image Tool
XWK	Keyboard mapping; Crosstalk	XWP	Session; Crosstalk
XWP	Text file; Xerox Writer	XX	Encoded file (ASCII); XXENCODE
XXE	Encoded file (ASCII); XXENCODE	XY	Text file; XY Write
XY3	Text file; XYWrite III	XYW	Text file; XyWrite III
Y	Archive (Amiga); Yabba	Y	YACC grammar file;
Ynn	Secondary index; Borland Paradox	YAL	Data custom/nature.yal; Arts & Letters
YC	Archive; YACC (YAC.EXE)	YUV	Graphics format (YUV);
YZ	Archive; YAC
Z	Archive; WinZipNT - COMPRESS - PACK	Znn	ZIP archive; PKZIP/PKUNZIP
Z3	Infocom game module;	Z80	Snapshot; ZX Spectrum emulator by g.a.lunter
ZAD	ZFax digitized voice file; ZFax	ZDG	Compressed ZiffNet text document; Zview
ZER	Data file; ZERBERUS	ZGM	Graphics; Zenographics
ZIP	Archive; PKZIP/PKUNZIP	ZOM	Archive; Amiga ZOOM
ZOO	Archive; ZOO	ZVD	ZyXEL Voicefile; Z-Fax
ZZE	Encoded file;

Podział

Ze względu na ogromną liczbę formatów plików, spis podzielono też w sposób następujący:

Spis formatów plików archiwów
Spis formatów plików audio
Spis formatów plików bazodanowych
Spis formatów plików dokumentów biurowych
Spis formatów plików graficznych
Spis formatów plików wideo
Spis formatów plików tekstowych
Spis formatów plików obrazów
Spis otwartych formatów plików
Spis zamkniętych formatów plików

Przypisy

↑ Rozszerzenia plików by Akuła the Finch. [dostęp 2021-10-26]. [zarchiwizowane z tego adresu (2018-03-30)].
↑ FILExt - The File Extension Source

Zobacz też

Format
Format pliku
Otwarty standard
Format otwarty
Format zamknięty
Mikroformaty
OpenDocument
rozszerzenie

[1] Rozszerzenia plików by Akuła the Finch. [dostęp 2021-10-26]. [zarchiwizowane z tego adresu (2018-03-30)].

[2] FILExt - The File Extension Source

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[2]

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