Reference_______ __ ______ __ _
Section / ____(_) /__ / ____/ __/ /____ ____ _____(_)___ ____ _____
/ /_ / / / _ \ / __/ | |/_/ __/ _ \/ __ \/ ___/ / __ \/ __ \/ ___/
/ __/ / / / __/ / /____> OS/2 RGB encoded
-> Windows RGB encoded
-> Windows RLE encoded
BSC
Boyan Script file. [Boyan Communications]
BW
BlueWave offline mailreader file
C
C programming language source code
CAP
Generic file name extension for Capture files (for screen capture or
session log,etc. used by programs like Procomm.)
CAT
Catalog file. Used in dBase,etc.
CBL
COBOL programming language source code file.
CAL
MS Windows calendar file, calendar.exe
CCS
Color Calibration System (file name extension)
CDF
Comma Delimited Format file
CDR, PAT
CorelDRAW!
CDT
CorelDRAW! Template file
CDX
FoxPro Compound Index file
CEL
AutoDesk Animator Cel Files. See also FLC
CFG
Generic extension used by various programs/applications to store
configuration data.
CGM Computer Graphics Metafile
1. CGM files are vector graphic files useful for clipart. They scale well,
and are the only ANSI standard graphic format.
Types:
* Binary encoding
2. Graph files in Lotus 1-2-3
CH
A C style header file used by Clipper.
CHK
These are lost allocation units which have been converted into files
by the DOS CHKDSK program.
CLP
Microsoft Windows clipboard files
Types:
1. Bitmap
2. Device Independent Bitmap
CLX, TLX
Dictionary file for Spell Sentry and Eudora
CMD
1. CorelDRAW!
2. Command or Script file in Trumpet Winsock
CMF
Creative Labs MIDI music file
CNF
Generic extension used by various programs/applications to store
configuration data.
CNT
Contents file
CNV
MS Word converter files
COB
COBOL source code file. See also CBL.
COD
Code List
COM
1. DOS executable/program file; size limited to 64 Kbytes
2. DigiPics image file. Do not require any viewer. Just execute the
file to display the image. Usually 60 Kbytes in size. See DGI.
CPE
Cover Page
CPI
Code Page Information file in MS-DOS
CPL
MS Windows Control Panel file
CPP
C Plus Plus (C++) source code file
CRD CaRD
MS Window program cardfile.exe.
CUR
Windows cursor files for win95 & NT4.0
CUT
Dr. Halo
D00
Vibrants Adlib Song
DAT
1. Generic extension used by various programs/applications to store
arbitrary data.
2. dat=MpegVideo Video CD
DB
A generic name to indicate a database file.
DBF Data Base File [Generic]
Database files used by various X-Base database applications like dBase,
Foxbase, Clipper, etc. Basic format originated with dBase.
DBT
FoxBASE+ Style Memo
DCT
Dictionary file
DCX
Multi-image PCX files. This format is a multi-page format for PCX files,
generally generated by fax software. For instance, Intel's fax software
produces DCX files.
DEF [Generic]
Used for storing Definitions or Default Parameters by various
applications.
DEM
Demonstration file
DES
Description file
DFM
Borland Delphi file.
DGI
DigiPics produced by Digital Vision. These files are usually about
64 Kbytes in size and need special programs like TURBODGI to view.
DigiPics files also come with COM extension. See COM
DHP
Dr. Halo PIC files.
DIB Device Independent Bitmap
DIBs are of the following types:
1. OS/2 RGB encoded
2. Windows RGB encoded
3. Windows RLE encoded
DIC DICtionary [Genereic]
Used by various applications, like word processors, to store dictionary
data. See also DCT.
DIZ Description In Zip
Mostly found in zipped software distributions via anonymous FTP sites.
Each zip file includes one special file (usually FILE_ID.DIZ) which
decribes the content of that particular zipped file.
DL (D)avide Tome' and (L)uca De Gregori -- the copyright owners
of this file format. Used for movie/animated clips. MOst DLs loop forever.
Originated in Italy.
DLL Dynamic Linked Libraries
These files contain sub-routines which are linked or invoked by other
executable programs during runtime.
DLZ
with DIET packed data-file
DMF
Delusion`s XTracker module music format
DMU Display Mate Utilities
DOC Document or Documentation [Generic]
Types:
* ASCII format documentation
* MS Word files
DOT
MS Word Template files
DPR
[1] Borland Delphi file.
[2] Turbo C project file.
DRS
WordPerfect Driver Resource file.
DRV DRiVer [Generic]
Device driver files. Device drivers are special programs which control
different hardware devices like sound card, etc.
DRW
Micrografx Draw. Also used by other drawing programs.
DSM
Dynamic SoundStudio
DTD Document Text Defination
Usually associated with HTML.
DTM
DigiTrecker Module
DV
DESQview Script file
DVI
Device Independent file
DVR
Device Driver file. Also see DRV.
DXB
Drawing Interchange Binary. [AutoCAD]
DXF
AutoCAD Exchange Format. This format is used for exchanging AutoCAD and
other CAD system files. In contrast the AutoCAD native (DWG) format is
proprietary and constantly changing whereas the DXF format is published
and relatively stable.
EML
Electronic Mail
ENC [Generic]
Encoded file.
EPS Encapsulated PostScript
These are Postscript language files and are created for Postscript
printers.
EPSs are of the following types:
-> Monochrome - no preview
-> Monochrome - with preview
-> Color - no preview
ERR [Generic]
Error message file
EXE EXEcutable
Executable or program file
FAX [Generic]
Fax file
FAQ Frequently Asked Questions
File containing answers to frequently asked questions on any specific
topic
FCT
FoxPro Catalog Memo File
FON
1. Font file
2. Phone book file [Generic]
FOR [Generic]
Fortran source code file
FOX
Foxbase compiled file
FIF Fractal Image Files
These files are compressed using fractal compression and the format is
patented by Iterated Systems Inc.
FKY
FoxPro macro save file
FLF FigLet Font
Font files for the ASCII font program FIGLET. It creates large characters
from ordinary printable ASCII characters.
FLL
FoxPro Library API Files
FLR
Folder
FLX
FMT
[1] Generic Format File
[2] Screen/report format file used by most of the XBase products
FPC
FoxPro Catalog file
FPQ
FoxPro Wizard-generated Updatable Query
FPT
FoxPro database memo file
FRM
Generic format/form files
FRS
WordPerfect Graphics Driver
FRX, FRT
Foxpro report files (they are in DBF and memo format respectively)
FXD
FoxDoc Supporting File
FXP
FoxPro compiled program
GEM
GEM Metafiles are vector graphic files i.e. they include drawing commands
for rendering the target images. They are similar to CGM files. GEM files
originated on the Amiga with Ventura. Produced by GEM Draw program.
GDM
"Bells,Whistles and Sound Boards" internal module format
GIF Graphic Interchange Format
A compressed picture format. Introduced by Compuserve for transmitting
graphic files over networks. The LZW compression algorithm used in a GIF
image is patented by Unisys Corp and, currently is, the bone of contention
between Unisys & software developers.
Most suitable for images with line-art graphics and solid colors.
GIFs are of the following types:
1. Interlaced
2. Non-Interlaced
3. Animated
Following are the versions till date:
-> 87a Interlaced -- this type is rare
-> 87a Non-Interlaced
-> 89a Interlaced
-> 89a Non-Interlaced
GL
A DOS based file format for movies.
GLY
Microsoft Word Glossary file
GRF
Graph file
GRP
Group description file [MS Windows]
gz
Files compressed using GNU GZIP. [Unix]
FLC
[1] Flick files. These are Autodesk Animator's files. This is later version
of CEL files and is a single-frame file. They can be viewed in both
Windows and DOS.
[2] FigLet Control file
FLF
FigLet Font file
FLI
See FLC [1]
FMC
Faust Module music
FNK
FunkTrackers Module music
FNT
8 Bit Text Font
FON FONt
Font files.
FOT
Arial Bold (TrueType)=ARIALBD.FOT
H
Header files - used in C and C-like (Clipper, etc) programming languages
HGL
Hewlett-Packard Graphics Language
HLP HeLP [Generic]
Used by various programs/applications help files.
HMI
Human Machines MIDI music file .. older version ???
HMP
Human Machines MIDI music file .. used by several games programs
HPJ
Help project file for Windows help compiler.
hqx
Macintosh BinHexed file.
HST
1. History file like in Netscape Navigator
2. Host
HTM, html,HTP Hyper Text Markup Language
HTML files used in World Wide Web and Intranets.
HYP
Hyphenation
ICO
Windows Icon files.
IDX
Single entry index file. [FoxPro, DBase]
IFF Interchange Format File
The Amiga Interchange Format File. Can be a picture, sound, etc.
The IFF format is an Amiga image storage format (Electronic Arts).
Very similar to LBM format.
Types:
1. Compressed
2. Uncompressed
IMG
The IMG format was originally designed for the Atari computers, then was
introduced to the PC world with several GEM-based products, like
Ventura Publisher, etc.
Types:
1. Old Style GEM Paint
2. New Style GEM Paint
INC [Generic]
Include file
IND [Generic]
Index file
INF [Generic]
Information file for applications.
INI
File containing the initial configuration data for a given software
package. Mostly found in Microsoft Windows environment.
INT
[1] Generically used for integer data
[2] FoxPro Code Page File/Collation Sequence File
IT Impulse Tracker
Impulse Tracker module music files.
JAV
JavaScript file
JNK [Generic]
Junk file
JPG, JIF, JFI: JPEG (JFIF) Files
JPG Joint Photographic experts Group
A JPEG file contains a compressed picture, mostly real life photographs.
This compression is a "lossy" compression i.e. some details of the original
image is lost during the compression process.
JPEG is pronounced as "jay-peg". (Huffman compressed)
KBD
Key map files for Procomm
KDC
KDC files are the native image format of DC-40 and DC-50 Kodak cameras.
KIZ
These are Kodak Postcard files. They contain uuencoded HTML text and JPEG
images.
LCK [Generic]
Lock files used by various applications (eg. Netscape)
LBM
Deluxe Paint picture files
Types:
1. Compressed
2. Uncompressed
LBR
Library file
LBX, LBT
Foxpro Label files
LET
Letter
LEX
Dictionary and grammer files used by several MS softwares like Word, etc.
LGO [Generic]
Logo file
LIB
Library files. Usually found with compilers.
LNK [Generic]
Link or linker script file
LOG [Generic]
Log files
LRS
WordPerfect Language Resource file
LST [Generic]
List
M1V
MPEG video
MAC
1. MACpaint
Apple/MacIntosh MacPaint program image files. Usually the images are in
black & white. Some also have MCP or PIC extension.
Types:
* With header
* Without header
2. Macro file
MAG MAGazine
Magazine format readable by MAGGY program
MAI
Mail
man
Manual pages (usually for Unix commands or programs)
MAP
Linker Map file
MAS [Generic]
Master file
MBX [Generic]
MailBox file
MDF
Menu Definition File
MCP
MACPaint
MDL
DigiTrakker 2.x/3.x Module
MED
OctaMED Module. Found in Amiga world.
MEM [Generic]
Memory variables saved in a file.
Used by most Xbase products like Clipper, DBase, FoxBase, etc.
MEN
Menu file
MET
Metafile
MID MIDi
MIDI Music files. MIDI stands for Musical Instruments Digital Interface.
This interface defines a common data protocol for digital music instruments
(like synthesizers) and the computer.
MIF
Management Information Files
MM
Midas internal module format
MND, MNI
Mandelbrot for Windows images, a package from Cerious Software.
MNU
Menu
MNX, MNT
FoxPro Menu description files (they are DBF & memo files respectively)
MOD
[1] The MOD format is for music files and originated from the COMMODORE
AMIGA computer. This format is a collection of sample data (similar to
the WAVE format) and a description of how to play these (similar to
the MIDI format). Some also call it as Digital Module Music.
[2] Eudora MODem script file
MOV
Audio-Video format introduced by Apple for Macintosh. Now also available
on the IBM PC. QuickTime for Windows is needed to view MOV files.
MPE
MPEG video
MPG Motion Pictures expert Group
A compressed format for video and audio. Promulgated by the Motion
Pictures Expert Group (MPEG).
MPR
FoxPro generated menu program. See MNX.
MPX
FoxPro compiled menu program
MS
Checksum files created by MS Virus Scan program
MSG
Program Message. Also generic extension for any text data file.
MSK
Mask picture file
MSP MicroSoft Paint
These image files are almost as large as DGI files.
Types:
1. New version
2. Old version
MTM
MultiTracker Module music file
MTR
MasterTrackers Module
MUS
MIDI files used by some games like the DOOM series
MVB
MS Multimedia Viewer file
NAV
Navigation script (for eaching the shell prompt). [Eudora]
NG
Document files in Norton Guide format
NCF
Novell Netware Command File
NDX
1. X-Base (dBase, Foxbase) database index file
2. Generic Index file name extension
NEW
New Information file
NFO [Generic]
Information file
NTX
Clipper index file
NWC
NoteWorthy music Composer files
OBJ [Generic]
Object code file. Usually the file(s) generated by compiler from source
code. These OBJ files are linked by a linker into the final executable
program(s).
OLD [Generic]
Old version of any given file
OPT
Options file
ORG [Generic]
Original copy of a modified file
ORI [Generic]
Original version of any file; same as OLD
OUT
Outlines file
OVL [Generic]
Program Overlay file. Sometimes also named as OV1, OV2...
OVR [Generic]
Program Overlay file
PAC
SBStudio 2.0 Module
PAK
Compressed file. Compressing program name PAK from NoGate Consulting
PAL
Colour Palette file
PAS PAScal
A pascal language source code file.
PAT
1. Gravis Ultrasound Patch File
2. Also used by other types of patch/pattern files
PAR
Any MS Windows related virtual memory related file.
e.g. c:\386spart.par
c:\windows\spart.par
PBM Portable BitMap
Unix
Types:
1. Ascii encoded
2. Binary encoded
PCD kodak PhotoCD images
This is a proprietary format developed by Kodak for photographic images.
They are generally distributed on CD-ROMs only, due to their extremely
large size. They can be loaded at different resolutions.
PCR PC Rockland compressed
Images files produced by PC Rockland. They are usually large pictures.
PCT
Picture file
PCX, PCC
An image format developed by Zsoft for its PC Paintbrush program.
Types:
1. Ver. 0
2. Ver. 2 (with palette info.)
3. Ver. 3 (without palette info.)
4. Ver. 5
PDC -- Photodex Document file
PDF
1. Potable Document Format
Started by Adobe. Acrobat reader from Adobe can be used to read this
files
2. Printer Description File [Borland,Lotus]
PDX
1. Paradox files
2. Printer Description Extension
PFB Printer Font Binary
PFB files are Adobe Type 1 Font files.
PFM Printer Font Metrics
PGL
Graphics file [Hewlett-Packard]
PGM Portable GreyMap
[Unix]
Types:
1. Ascii encoded
2. Binary encoded
PGP
1. AutoCAD ProGram Parameter file
2. Pretty Good Privacy (encryption) files
PHD -- Photodex File Mirror 1.00_
PHO
Phone List
PIC
1. Pictor/PC Paint file
2. Lotus 1-2-3 chart file
3. MacIntosh PICT file
4. Dr. Halo or Halo DFI file
PIF
1. Picture Interchange Format File
2. MS Windows Program Information File
PJX, PJT
Foxpro Project files (they are DBF and memo files respectively)
pl PerL
A Perl script file. You have to have a Perl interpreter loaded to
execute this type of file.
PLB
FoxPro for MSDOS file
PLL, PLT
Clipper Prelinked Library file
PLM
Disorder Tracker Module
PNG Portable Network Graphics PiNG
A new graphics specification with excellent "loss-less" compression which
is royalty free (unlike GIF).
Two types: Interlaced & Non-interlaced
PNP
Portable Network Picture
PPD PostScript Printer Description
PPM Portable PixelMap [Unix]
Types:
1. Ascii encoded
2. Binary encoded
PRD
Word Printer Driver file
PRF
1. Grammatik IV Preferences file
2. Generic extension used for storing user preferences/profiles
PRG
1. X-Base language program file [dBase, FoxBase, Clipper, etc.]
2. [Generic] Any program file
PRJ
Borland Delphi,Paradox Project file
PRM [Generic]
A Program parameters file
PRO
Profile
PRS
WordPerfect Printer
PRX
FoxPro compiled program (from PRG)
ps PostScript
Adobe PostScript files. Most of the DTP applications recognize this
format. Also GHOSTSCRIPT is a GNU freeware which can interpret these
files. Usually used to encode documents in platform independent form.
PSD
PSD files are the native image format used by Adobe Photoshop (2.5).
Types: RGB or indexed
PSM
ProSound Studio Module; used by Epic Games; 2 Versions
ps.Z
Compressed PostScript file under Unix
PUB
Ventura Publication file
PX
Paradox Primary Index file
PTM
PolyTracker Module music file
QDI
Quicken Dictionary file
QDT
Quicken Data file
QIF
Quicken Import File/Interchange Format
QMT
Quicken Memorized List
QNX
Quicken Indexe file
QPR
FoxPro Generated Query Program
QPX
FoxPro Compiled Query Program
QTC
A quicktime support file.
See MOV
RA
Real Audio streaming audio file
REC
MS Windows Recorder file
REF [Generic]
Reference file
REG [Generic]
Registration data file
RES
Resource file
RAD
Real Adlib Tracker
RAR
Files having these extensions- RAR,R00,R01,R02... are files which
have been compressed using RAR.EXE (a menu driven compressor/archiver).
You have to use RAR.EXE to un-compress these files. RAR.EXE also
has a command line interface.
RAS
Sun Unix Raster Image files.
Two types:
colour-mapped (256 colours) or truecolor
Type 1 (Modern Style) Sun Microsystems
RAW
Raw file format. Un-encoded pixel date. Can be Raw Grayscale or RGB format
like:
8-bit grayscale
16-bit grayscale (Intel or Motorola byte order)
24-bit RGB (RGB or BGR order)
32-bit RGBA (RGBA, ARGB, BGRA or ABGR order)
Also HSI RAW Picture
REC RECorder
MS Windows program, recorder.exe, file.
REG REGistration
Commonly found with MS Windows system.
REP REPly
A reply packet as per the QWK mail format. Used by BBS softwares like
BlueWave.
e.g. _COBWEB_.REP where _COBWEB_ is the name of the BBS for which this
reply packet is meant.
RIF
Can be picture, sound, (several subformats)
ROT ROoT
Arbitrary extension to indicate a root directory image.
RIX
ColoRix picture file
RLE Run Length Encoded
Two types: CompuServe & Windows
The CompuServe RLE files are the precursor to the GIF format.
RMI
MIDI file
*rmi=sequencer
RMK
RTLink "make file"
RPT
Generic extension used by various applications report data or format files.
RTF Rich Text Format
S3M
Scream Tracker 3.xx music files.
Also see STM.
SA2
Adlib Music Module
SBK
AWE32 Sample Bank
SBR
Source Browser [Borland]
SC
Script file
SCR
1. Script file
2. Screen file
e.g. Display Mate Utilities
SCX, SCT
Foxpro screen builder information files (they are DBF & memo files
respectively)
SDF
Standard Data Format. Also sometimes called as Standard Delimited File
SEA
Macintosh Self Extracting Archive
SET
1. Lotus 1-2-3 Driver Set
2. Paradox Image Settings file
SHG
A SHED.EXE (windows help compiler) file
SHT, shtml Secure HTML
A secure HTML file. See HTM.
SHW
Show file
SIT
Macintosh compressed Stuff-It file
SMP
Sample (file name extension)
SND
Sample file used by some Trackers
SNG
Faust Module, Adlib
SPL
Spell Checker
SPR
Code generated by FoxPro screen builder.
SPX
Compiled screen program. See SPR. [FoxPro]
SRC [Generic]
Source file
SRP
Script file
STF
Lotus Agenda Structured File
STM
Scream Tracker 2.xx music files. This program could also play STM files
over the PC-speaker with pretty impressive results.
STS [Generic]
Status File
STY
Style file. Used by Ventura, Word, WordPerfect
SUP
WordPerfect Supplemental Dictionary file
SWP [Generic]
Swap file. For swapping memory contents. Used by programs like DOS4GW,
etc.
SYL
Syllabus
SYM
Symbols file
SYN
Synonym file
SYS
1. DOS System Configuration (CONFIG.SYS)
2. System Device Driver file
TAG
Tag lines file
tar Tape ARchive
Archived files using Unix TAR command
tar.gz
Tar archived files which are further compressed using GNU GZIP
Also sometimes tgz is used.
tar.Z
Archived (using TAR) and compressed (using COMPRESS) files
TBK
[1] Toolbook file
[2] FoxPro Memo File Backup
TC
Turbo C Configuration file
TCH
Turbo C Help file
TDF
1. Trace Definition File [OS/2]
2. Typeface Definition File
TXF Tax Exchange Format
TFM Tagged Font Metric
TGA
Truevision Targa
Types:
1. 8-bit - compressed
2. 8-bit - uncompressed
3. 16-bit - compressed
4. 16-bit - uncompressed
5. 24-bit - compressed
6. 24-bit - uncompressed
THD
Thread
THS
Thesaurus
TIF,TIFF Tagged Image File Format
A graphic format used in the real world for transferring HUGE graphics
files between print shops. Introduced by Aldus Corporation.
Types:
1. Huffman compressed
2. LZW compressed
3. Packbits compressed
4. Uncompressed
5. Fax Group 3 compressed
6. Fax Group 4 compressed
TLB
An extension used by Netscape.
TLX [Generic]
Telex
TMP [Generic]
Temporary file. Normally a well designed application deletes these files
when it quits.
TOC [Generic]
Table of contents file [eg. Eudora]
TRF
WinTune, a MS Windows performance tuning program, report file.
TRM TeRMinal
MS Windows program terminal.exe, file.
TST [Generic]
Test file.
TTF True Type Font
True Type font file.
TUT [Generic]
Tutorial
TXT [Generic]
Plain ASCII text file. Normally contains the printable or lower ASCII
characters (except for CR & LF). In Unix world, each line, in this type of
file, is terminated by CR (Carriage Return) whereas in DOS world, each
line ends with a CR and LF (Line Feed) pair.
NOTE: the "txt" extension is not an enforced standard but a convention.
Some people might use "ASC" as an extension and some might not.
See ASC
UC2
File compressed by UltraCompressor program
ULT
UltraTracker Module
UNI
MiKMOD Internal Module; 5 versions
UPD [Generic]
Updated copy of a file, driver, etc.
uu
Text equivalent of binary files produced by UUENCODE. Uuencoded files
are a convenient way of sending binary data over essentially ASCII
oriented networks. You have to decode the files using UUDECODE back
into the original data.
VAL
Validity Checks file [Paradox]
VBX Visual Basic Extension
Microsoft Visual Basic
VMC
DOS4GW Virtual Memory Control file
VOC
Creative Voice file
VRS
WordPerfect Graphics Driver
VUE
FoxPro,Dbase View File
VXD
Virtual Device driver [Microsoft]
WAD
Support files for ID games like DOOM, Heretic, etc.
WAS
Procomm for Windows uncompiled script file.
See WAX.
WAV
Waveform Audio file.
WAX
Procomm for Windows compiled script file.
See WAS.
WIN
Window Save File
WKB
Workbook [WordPerfect]
WKE
Worksheet [Lotus 1-2-3]
WKQ
Spreadsheet [BORQU]
WKS
Worksheet [Lotus 1-2-3]
WKZ
Compressed Spreadsheet [BORQU]
WK1
Worksheet [Lotus 1-2-3]
WMF Windows MetaFile
Microsoft Windows Metafile
WOW
Module music
WPD
Windows Printer Description
WPG
WordPerfect Graphics
Versions: 5.0, 5.1, 6.0
WPK
WordPerfect Keyboard
WPM
WordPerfect Macro file
WQ1
Spreadsheet [BORPQU]
WQ!
Compressed Spreadsheet [BORPQU]
WRI
MS Windows Write file
XBM
X-Windows Bitmap file (black and white). See XPM
XLM
XLS
XM
Fast Tracker 2.x module music files.
XMI eXtended MIdi
Extended MIDI file; 2 versions
XMS
Madokan`s Adlib Tune
XPM
X-Windows Pixelmaps (color). See XBM
z
Files compressed with Unix PACK command. Can be uncompressed by
UNPACK.
Z
Compressed file, compressed using Unix COMPRESS command
ZIP
Files having this extension (ZIP) are most probably compressed files
which have been compressed by PKZIP.EXE. You can un-compress these
files using PKUNZIP.EXE, InfoZip, Winzip, etc.
ZOO
Compressed File [Dhesi]
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