Complete List Of Extensions

Computer,File Extesions

We use computer and sometimes we receive a file from our friends or download from the internet but we are not sure about the file extension. We rush to others to find the meaning of this file extension . So here I tried out to find a huge list of file extension used by computer programs or computer hardware. If I forget to list any other file extension then let me know I will update my list.

A

  • a - library (unix)
  • .ad - screen saver data (AfterDark)
  • .adi - graphics (AutoCAD)
  • .adl - MCA adapter description library (QEMM)
  • .afi - Truevision bitmap graphics
  • .afm - Type 1 font metric ASCII data for font installer (ATM - many)
  • .all - format file for working pages (Always)
  • .all - general printer information (WordPerfect for Win)
  • .ani - animation (Presidio - many)
  • .anm - animation (Deluxe Paint Animator)
  • .ans - ANSI graphics (character animation)
  • .ans - ASCII text ANSI character set (NewWave Write)
  • .asc - ASCII text file
  • .avi - Audio Video Interleaved animation file (Video for Windows)

B

  • .bak - backup file
  • .bas - BASIC source code file
  • .bat - batch file (DOS)
  • .bbm - brush (Deluxe Paint)
  • .bbs - Bulletin Board System announce or text info file
  • .bch - batch process object file (dBASE Application Generator)
  • .bcp - Borland C++ makefile
  • .bdf - Bitmap Distribution Format font file (X11)
  • .bga - bitmap graphics
  • .bib - bibliography (ASCII)
  • .bib - database - not compatible with TeX format (Papyrus)
  • .bib - literature database (TeX/BibTeX)
  • .bif - Binary Image Format b&w graphics (Image Capture board)
  • .bin - binary file
  • .bio - OS2 BIOS
  • .bit - bitmap X11
  • .bm - BitMap graphics
  • .bmk - Help Bookmarks (Windows 3.x)
  • .bmp - BitMaP graphics (PC Paintbrush - many)
  • .bpt - bitmap fills file (CorelDRAW)
  • .btm - Batch To Memory batch file (4DOS)
  • .bup - backup file

C

  • .c - C source code file
  • .c - compressed unix file archive created by COMPACT
  • .c++ - C++ source code file
  • .cal - calendar file (Windows 3.x)
  • .cal - spreatsheet (SuperCalc)
  • .cbl - COBOL source code file
  • .cbm - compiled bitmap graphics (XLib)
  • .cbt - Computer Based Training (many)
  • .cc - C++ source code file
  • .ceg - bitmap graphics (Tempra Show - Edsun Continuous Edge Graphics)
  • .cga - CGA display font (Ventura Publisher)
  • .chk - recovered data (DOS CHKDSK)
  • .chk - temporary file (WordPerfect for Win)
  • .clp - clip art graphics (Quattro Pro)
  • .clp - clipboard file (Windows 3.x)
  • .cls - C++ class definition file
  • .cmd - batch file (OS/2)
  • .cmd - command (dBASE - Waffle)
  • .cmd - external command menu (1st Reader)
  • .cpp - C++ source code file
  • .cpp - presentation (CA-Cricket Presents)
  • .cpt - compressed Mac file archive created by COMPACT PRO (ext-pc.zip)
  • .cur - cursor image file (Windows 3.x)

D

  • .dat - data file in special format or ASCII
  • .dbd - debug info (Clarion Modula-2)
  • .dbg - symbolic debugging information (MS C/C++)
  • .dcf - disk image file
  • .dd - compressed Macintosh file archive created by DISKDOUBLER
  • .deb - DEBUG script (DOS Debug)
  • .def - defaults - definitions
  • .dem - demonstration
  • .dem - graphics (VistaPro)
  • .dgs - diagnostics
  • .dic - dictionary
  • .dir - directory file (VAX)
  • .diz - description file (Description In Zip)
  • .dlg - dialog resource script file (MS Windows SDK)
  • .dll - Dynamic Link Library (Windows 3.x - OS/2)
  • .dll - export/import filter (CorelDRAW)
  • .dmp - dump file (eg. screen or memory)
  • .doc - document text file
  • .dos - network driver (eg. pkt_dis.dos)
  • .dos - text file containing DOS specific info
  • .drv - device driver eg. for printer
  • .dsk - project desktop file (Borland C++ - Turbo Pascal)
  • .dss - screensaver file (DCC)

E

  • .ega - EGA display font (Ventura Publisher)
  • .emu - terminal emulation data (BITCOM)
  • .env - Enveloper macro (WOPR)
  • .env - environment file (WordPerfect for Win)
  • .err - error log
  • .err - error messages for command line compilers
  • .esh - Extended Shell batch file
  • .exc - REXX source code file (VM/CMS)
  • .exc - exclude file for Optimize (do not process) (QEMM)
  • .exe - directly executable program (DOS)
  • .exm - MSDOS executable, system-manager compliant (HP calculator)
  • .ext - extension file (Norton Commander)

F

  • .fac - FACE graphics
  • .faq - Frequently Asked Questions text file
  • .fax - fax (raster graphics) (most Fax programs)
  • .fdw - form (F3 Design and Mapping)
  • .fix - patch file
  • .frm - form (Visual Basic)
  • .ftp - configuration (FTP Software PC/TCP)
  • .fx - on-line guide (FastLynx)
  • .fxd - phonebook (FAXit)

G

  • .gbl - global definitions (VAXTPU editor)
  • .gfb - compressed GIF image created by GIFBLAST (gifblast.exe)
  • .gft - font (NeoPaint)
  • .gif - Graphics Interchange Format bitmap graphics (CompuShow)
  • .gly - glossary (MS Word)
  • .gph - graph (Lotus 1-2-3/G)
  • .gr2 - screen driver (Windows 3.x)
  • .grb - MS-DOS Shell Monitor file (MS-DOS 5)
  • .grp - group file (Windows 3.x - Papyrus)

H

  • .hlp - help information
  • .hof - Hall Of Fame (game scores)
  • .hp8 - ASCII text HP Roman8 character set (NewWave Write)
  • .htm - HTML document (Mosaic)
  • .htx - Hypertext file

I

  • .iax - bitmap graphics (IBM Image Access eXecutive)
  • .ibm - compressed file archive created by ARCHDOS (Internal IBM only)
  • .icn - ICON source code file
  • .ico - icon (Windows 3.x)
  • .id - disk identification file
  • .ifs - system file (OS/2) hpfs.ifs
  • .img - bitmap graphics (Ventura Publisher - GEM Paint)
  • .inc - include file (several programming languages)
  • .inf - information text file (ASCII)
  • .inf - install script
  • .ini - initialization file
  • .ins - (WordPerfect) wp51.ins
  • .ins - installation script (1st Reader)

J

  • .jas - graphics
  • .jbd - datafile (SigmaScan)
  • .jpc - graphics (Japan PIC)
  • .jpg - JPEG Joint Photography Experts Group format bitmap graphics
  • .jtf - graphics (TIFF file with JPEG compression)

K

  • .key - security file eg. Shareware Registration info
  • .kps - IBM KIPS bitmap graphics
  • .kyb - keyboard mapping (FTP Software PC/TCP)

L

  • .lbm - bitmap graphics (DeluxePaint)
  • .lbm - linear bitmap graphics (XLib)
  • .lcl - (FTP Software PC/TCP)
  • .ldb - (MS Access)
  • .lgo - startup logo code (Windows 3.x)
  • .lib - library file (several programming languages)
  • .lis - listing (VAX)
  • .log - log file
  • .lpc - printer driver (TEKO)

M

  • .m3d - 3D animation macro
  • .mac - bitmap graphics (Macintosh MacPaint)
  • .mac - macro
  • .mai - mail (VAX)
  • .mak - makefile
  • .mak - project file (Visual Basic)
  • .man - command manual
  • .map - color palette
  • .map - format data (Micrografx Picture Publisher)
  • .map - linker map file
  • .map - map (Atlas MapMaker)
  • .map - network map (AccView)
  • .mbx - mailbox data (ZERBERUS)
  • .mci - MCI command script (Media Control Interface)
  • .mcp - printer driver (Mathcad)
  • .mcw - text file (MacWrite II)
  • .mdm - modem definition (TELIX)
  • .meu - menu group (DOS Shell)
  • .mid - standard MIDI file (music synthetizers)
  • .mke - makefile (MS Windows SDK)
  • .mod - MODULA-2 source code file (Clarion Modula-2)
  • .mod - Windows kernel module
  • .mon - monitor description (ReadMail)
  • .mov - movie (AutoCAD AutoFlix)
  • .mp2 - MPEG audio file (xing)
  • .mpc - calender file (MS Project)
  • .mpg - MPEG animation
  • .msg - message
  • .msp - bitmap graphics (Microsoft Paint)
  • .mst - setup script (MS Windows SDK)
  • .mth - math file (Derive)
  • .mtm - MultiTracker Module music
  • .mtw - datafile (Minitab)
  • .mu - menu (Quattro Pro)
  • .mus - sound file (MusicTime)
  • .mvf - stop frame file (AutoCAD AutoFlix)
  • .mvi - movie command file (AutoCAD AutoFlix)
  • .mvw - log file (Saber LAN)
  • .mxt - (MS C)

N

  • .nws - info text file (latest news) (ASCII)
  • .nxt - sound (NeXT format)

O

  • .obj - object code (Intel Recolatable Object Module)
  • .ocx - OLE custom control
  • .off - Object File Format vector graphics
  • .old - backup file
  • .ovl - overlay file (part of program to be loaded when needed)
  • .ovr - overlay file (part of program to be loaded when needed)

P

  • .pac - STAD Image (graphics ?)
  • .pac - package (SBStudio II)
  • .pal - color palette
  • .par - permanent output file (Windows 3.x)
  • .pcc - cutout picture vector graphics (PC Paintbrush)
  • .pch - patch file
  • .pct - bitmap graphics (Macintosh b&w PICT1 - color PICT2)
  • .pcw - text file (PC Write)
  • .pcx - bitmap graphics (PC Paintbrush)
  • .pda - bitmap graphics
  • .pdv - printer driver (Paintbrush)
  • .pgm - Portable Grayscale bitMap graphics
  • .pgm - program (Signature)
  • .pgp - support file (Pretty Good Privacy RSA System)
  • .pgs - manual page (man4dos)
  • .pic - PIXAR picture file (SDSC Image Tool)
  • .pic - bitmap graphics (Macintosh b&w PICT1 - color PICT2)
  • .pic - bitmap graphics (many eg. Lotus 1-2-3 - PC Paint)
  • .pif - Program Information File (Windows 3.x)
  • .pif - vector graphics GDF format (IBM mainframe computers)
  • .pit - compressed Mac file archive created by PACKIT (unpackit.zoo)
  • .pll - pre-linked library (Clipper 5)
  • .pnt - Macintosh painting
  • .pop - messages index (PopMail)
  • .pop - pop-up menu object (dBASE Application Generator)
  • .prd - printer driver (many)
  • .pub - public key ring file (Pretty Good Privacy RSA System)

Q

  • .qpr - print queue device driver (OS/2)
  • .qpx - compiled query program (FoxPro)
  • .qrt - QRT ray tracing graphics
  • .qry - query (dBASE IV)
  • .qt - QuickTime movie (animation)
  • .qwk - QWK reader message file
  • .qxd - document (QuarkXPress)
  • .qxl - element library (QuarkXPress)

R

  • .rdi - device-independent bitmap file (RIFF RDIB format)
  • .rdx - datafile (Reflex)
  • .rec - datafile (EpiInfo)
  • .rec - record file (Sprint)
  • .rec - recorded macro file (Windows 3.x)
  • .red - path info (Clarion Modula-2)
  • .ref - cross-reference
  • .reg - OLE Registration (Windows 3.x)
  • .reg - registration (Corel programs)
  • .rem - remarks
  • .rgb - SGI RGB image file (SDSC Image Tool)
  • .rif - RIFF bitmap graphics (Fractal Design Painter)
  • .rip - graphics (Remote Access)
  • .rix - bitmap graphics (ColorRIX VGA Paint)
  • .rmk - makefile (RMAKE)
  • .rpt - report
  • .rtf - Windows Help file script
  • .rtl - text file

S

  • .sav - backup file (saved file)
  • .sav - configuration
  • .sav - saved game situation (eg. NetHack)
  • .sbd - storyboard (Storyboard Editor)
  • .sbi - Sound Blaster Instrument file (Creative Labs)
  • .sbr - support file (Source Browser)
  • .scc - text file
  • .scr - DEBUG source code file (DOS Debug)
  • .scr - screen saver (Windows 3.x)
  • .scx - bitmap graphics (ColorRIX)
  • .sea - Self-Extracting compressed Macintosh file Archive
  • .sec - secret key ring file (Pretty Good Privacy RSA System)
  • .sec - secured animation file (Disney Animation Studio)
  • .set - setup options file
  • .sgi - graphics (IRIS - Silicon Graphics)
  • .sig - current program settings (Signature)
  • .sig - signature file (PopMail)
  • .sit - compressed Macintosh archive created by STUFFIT (unsit30.zip)
  • .smp - sample (sound file)
  • .smt - text file (Smart Ware II)
  • .snd - digitized sound file (Macintosh/ATARI/PC)
  • .spl - sample
  • .sum - Summary
  • .swp - swap file (DOS)
  • .sys - datafile (SYGRAPH - SYSTAT - SPSS/PC)
  • .sys - system file - device driver or hardware configuration info (DOS)

T

  • .tbl - graphics (native format) (PageMaker TableEditor)
  • .tbl - table of values (OS/2)
  • .tel - host file (Telnet)
  • .tga - TrueVision Targa bitmap graphics
  • .tmp - temporary file
  • .toc - Table Of Contents
  • .tre - directory tree file (PC-Tools)
  • .trm - terminal settings (Windows 3.x)
  • .tut - tutorial

U

  • .ub - audio file (unsigned byte)
  • .uhs - Universal Hint System (binary file)
  • .uif - long prompts for windows (WordPerfect for Win)
  • .unx - text file containing UNIX specific info
  • .upd - program update info
  • .usr - user database file (Procomm Plus - Turbo C++ tour)

V

  • .vbx - Visual Basic eXtension (Visual Basic)
  • .vga - VGA display driver
  • .vga - VGA display font
  • .vgd - VGA display driver (Generic CADD)
  • .vid - MS-DOS Shell Monitor file (MS-DOS 5)
  • .vid - bitmap graphics (YUV12C M-Motion Frame Buffer)
  • .vid - screen device driver (Word)
  • .voc - digitized samples (Creative Voice file)
  • .vst - Truevision Vista bitmap graphics
  • .vue - animation (3D Studio)
  • .vxd - Windows 3.x virtual device driver (QEMM)

W

  • .w31 - startup file (Windows 3.1)
  • .wav - Waveform audio file (RIFF WAVE format)
  • .wbf - MS Windows Batch File (Catch)
  • .wbt - batch file (WinBatch)
  • .web - WEB source code file
  • .woa - swap file (Windows 3.x)
  • .wrs - Windows Resource eg. printer driver (WordPerfect for Win)

X

  • .xbm - X11 Bitmap graphics
  • .xll - Excel Dynamic Link Library (MS Excel)
  • .xmi - compressed eXtended MIdi music
  • .xwd - X Window System window dump image graphics (SDSC Image Tool)
  • .xx - compressed file ASCII archive created by XXENCODE (uuexe515.exe)
  • .xxe - compressed file ASCII archive created by XXENCODE (uuexe515.exe)

Z

  • .zip - compressed file archive created by PKZIP (pkz204g.exe)
  • .zoo - compressed file archive created by ZOO (zoo210.exe)
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