ANSI graphics file; viewable by typing TYPE <filename> at the DOS prompt; usually created by bulletin board operators to advertise their board
Compressed, archived file, processed usually with PKUNPAK.EXE (PKWARE; product; difficult to find now as the ARC file format is obsolete)
ARJ@Compressed, archived file created with ARJ.EXE by Robert K. Jung
ART+Usually a graphics file for First Publisher
ASC9ASCII text file; seldom used any more; TXT is more common
Assembly language source code
Procomm script file
AUSAudio data file; Sun Microsystems format; common on the Internet due to portability
AVI*Microsoft Video for Windows animation file
BAK*Backup file; nearly always safely erasable
Program or source code in BASIC programming language; requires the proper BASIC command interpreter to run; not all interpreters are the same and many produce unexpected results with incompatible BASIC code
DOS batch file; a series of commands executable just as if they were typed at the command prompt; the simplest programming language for IBM-compatibles
Binary data file; usually an "overlay" file used at certain times by a given program; on some systems BIN files are actual programs
Lotus Manuscript graphic file
BKP/A backed-up file; almost always safely erasable
BLDTBSAVE'd BASIC binary file. These are loaded with the BLOAD command; seldom used now
BMK,Bookmark information from a Windows helpfile
BMP:Bitmapped graphics file used mainly with Microsoft Windows
C$Source code for a C language program
CABLCompressed, archived binary file used by Microsoft for distributing software
CALdCalendar file; data file used by several programs, in Windows almost always used by Windows Calendar
CATPMaster catalog file used with MSBACKUP (MS-DOS 6.0+); critical to the backup set
CDR"Graphics file created by CorelDraw
CFG Configuration file for a program
CFN Configuration file for a program
CGMMComputer Graphics Metafile used by MS Publisher and other compatible programs
Stray data file produced by DOS CHKDSK.EXE. These files are written to the root directory when you convert lost chains to files. Best kept unless system is behaving flawlessly and all files are accounted for
CHTUChart file from one of several charting programs or a "cheat" file of tips for a game
CLPbWindows program data (any type) which has been copied to the clipboard and saved to disk as a file
CNFtConfiguration file; either contains setup data created by the program when installed or the user's personal settings
CNT#Windows 95 helpfile topic list file
CNV\Converter program used by other Windows programs to convert one type of data to another type
COB6Source code for programs written in the COBOL language
COD"Object code file used by compilers
Command file; a DOS-only program consisting of a series of instructions that can be executed directly by COMMAND.COM and does not need sophisticated control over the hardware
CPITCode page information files for foreign character sets used by MS-DOS; rarely needed
CPLjWindows control panel "applet" or mini-program; not runnable from the command prompt or by double-clicking
CPS?Antivirus checklist file, probably left by Microsoft Antivirus.
CPT4Macintosh format Compact Pro compressed archive file
CRDMCardfile data file for Windows Cardfile; also used by other database programs
Cross-reference file
CUT+Halo I, II, III graphics file from Dr. Halo
DAT@data file; used in hundreds of applications for various purposes
Paradox database file
dBASE II database file
dBASE III database file
dBASE IV database file
DBFHDatabase file, usually compatible with or created by Ashton-Tate's dBASE
DCT/Dictionary file; usually contains the word list
DEFEDefinition file; used for a variety of purposes by different programs
DEVWDevice driver file; also used in various forms by programmers to indicate "development"
DHP!Dr. Halo PIC graphics format file
EXE4Executable program file used by DOS, Windows or OS/2
FAQ$Frequently Asked Questions text file
FLC!Compressed AutoCAD animation file
AutoCAD animation file
FLT:Filter data file; used by many different types of programs
FMT!Formatting file used by dBASE III
FNT3Font file; various formats depending on the program
Bitmapped font file used by Windows (bitmapped fonts get "jaggy" at large font sizes and often have a fixed set of allowable font sizes)
FOR!FORTRAN language source code file
FOT8Windows configuration data file for TrueType (TTF) fonts
FoxBASE database file
FRM>Form; either a blank form template or a saved, filled out form
Windows Help database file created by a maximized Full-Text Search; usually erasable, particularly if they take up a great deal of space
FTS~Windows Help database file created by a Full-Text Search; usually erasable, particularly if they take up a great deal of space
FULQFull backup (complete contents of a disk) catalog file used with MS-DOS 6+ Backup
FX?m FXS, FXD etc. files are datafiles used by Winfax/Winfax Pro. Outdated FXS files can nearly always be deleted+E
GEM Metafile
GIDmUsually a Windows 95 helpfile data file that stores the keywords and user information for a specific HLP file
GIF4CompuServe Graphics Interchange Format graphics file
GRPwWindows Program Group data file; stores information about icons and special execution instructions for Windows programs
Show Partner graphics file
GXL8GRASP Graphics file format often used for game animation
ZIP-compressed archive file using GZIP or a compatible program; a form of compression used mainly on UNIX systems but becoming popular on the Internet. Might also be preprocessed with tar
H$C programming language "header" file
HGL-Hewlett Packard Graphics Language (HPGL) file
Help file. DOS program HLP files may or may not be formatted text; in Windows and OS/2 these are always specially-formatted, compiled hypertext similar to this file
HNT Hint or "cheat" file from a game
HPFFHewlett Packard HP/PCL printer softfonts, usually created by Bitstream
HPG-Hewlett Packard Graphics Language (HPGL) file
HQXjMacintosh-format BinHex-encoded binary file designed to allow transmission of Mac files to other platforms
HSTLUsually a text file showing the history or usage log of a particular program
HTMFHypertext Markup Language (HTML) file; a World Wide Web-formatted pageyD
LBM1IFF graphics file used by Deluxe Paint and others
LBR_Ancient type of compressed file created with text instructions; once used on the World Wide Web
LEX_Lexicon, thesaurus or dictionary file used by a grammar or spelling checker or online thesaurus
LIB1Library file used by a computer language compiler
LNKbWindows 95 shortcut information file used by the Start menu; also link file used by some compilers
LOGUA logfile of information about a specific program, user, or activity within a program
LSTOText file usually consisting of a list of files contained in a software package
LTR,Letter file used by word processing programs
LZH3Compressed archive file created by LHArc or LHA.EXE
MAC&MacPaint graphics file or a macro file
MANYFile that contains the manual for a program. This is usually in the form of a text file.
MDB)Microsoft Access-compatible database file
ME3Usually a text file with the name READ.ME (see 1ST)
MID(Standard MIDIfile Format (SMF) song file
MIM>MIME-encoded binary file attached to USENET postings and email
MME>MIME-encoded binary file attached to USENET postings and emailYE
MNU\Menu data file (usually saved from personalized settings) or a mouse menu configuration file
File to support data exchange between DOS and Windows; also a sound or song file made by rearranging a collection of sound samples
Apple QuickTime animation file
Short for "Mozilla", a Netscape Navigator cached file; safely erasable if not in a subdirectory of the currently-used copy of Netscape
Multi-resolution bitmap file; used by Windows Help to permit accurate view of helpfile graphics on nonstandard video displays; not usable elsewhere
MSP!Microsoft Publisher document file
MVB4Windows helpfile with embedded video and/or database
NAM:Name file, used by many programs, most commonly Print Shop
NDXCdBASE-compatible database index file; used by thousands of programs
Update file; usually WHATS.NEW, a text file containing new product information or information about new features in an existing product
NGGDatabase file for Norton Guides (text databases; usually DOS helpfiles)
Usually a text file "note"
NOW=Almost always a README file; so named to indicate its urgency
NTX$dBASE-compatible database index file
Microsoft Office 95 binder file
OBJKObject source code file; used by Pascal and other object-oriented languages
File that has been backed up and renamed to indicate its status as "old"er than another file (probably in the same directory) with the same name)
OVLiOverlay file; part of a program which cannot be loaded into memory at boot due to DOS memory restrictions
OVRtUsually an overlay file; part of a program which cannot be loaded into memory at boot due to DOS memory restrictions
P/Usually Pascal programming language source code
PAK>Compressed archive file created by NoGate Consulting's PAK.EXE
PAL\Palette file; contains color palette information for the graphics program which generated it
PAS,Pascal programming language source code file
PBM$Portable bitmap format graphic image
PCCRCompressed PC Paintbrush (Z-Soft) graphics file; not Windows Paintbrush compatible
PCD#Kodak Photo-CD format graphics file
PCXCPC Paintbrush (Z-Soft) graphics file; Windows Paintbrush compatible
PDFgPrinter Definition File or Portable Document Format (Adobe's Acrobat Reader) document or hypertext file
PDV'Microsoft Paintbrush device driver file
Paradox database file
PGMSProgram binary file, usually an overlay; also portable greymap format graphic image
PGP]A Pretty Good Privacy encryption string file used for creating or decoding PGP-encrypted data
PICYLotus graphics file, or graphics file used by PC Paint+, GRASP, MacDraw, Degas and others
PIFoWindows or OS/2 program information file; a configuration file for running DOS programs within Windows or OS/2.
Permanent IMage file used by some graphics programs; used in some programs (usually Personal Information Managers) as a database file
PIT5Older format Macintosh PackIt compressed archive file
PLRPerl language generated script file; could appear identical to an HTML-format file
PNG3Portable Network Graphics format graphic image file
New Print Shop "name file"
New Print Shop graphics file
PPM)Portable pixmap format graphic image file
PPTdMicrosoft PowerPoint presentation file; browsable using the free Microsoft Windows PowerPoint viewer
PRDvPrinter definition file; this extension is used by many DOS text editors and word processors, most notably WordPerfect
PRGKProgramming source code (any language) or program file from Atari ST/STe/TT
PRN*Usually a text file formatted for printing
PRS#WordPerfect printer definition file
PRTDData file, usually text, designed or saved by a program for printing
PSOJPostScript Page Description Language (PDL) printer Bitstream softfont file
QT$Apple QuickTime video animation file
RealAudio compressed sound file
RAR"RAR format compressed archive file
RAS_CMU raster image format graphic image; also a configuration file used by remote access software
RAW:Either a "raw" sampled sound or a RAW-format graphic image
RC:List of USENET newsgroups compiled by a newsreader program
Windows Macro Recorder file
Registration information file, usually for a Windows program; used in installation to configure the program for proper interaction with Windows and other Windows programs
RGB;Graphic image format used on some UNIX-based Internet sites
RLESRun-Length-Encoded compressed graphics file: often used as Windows start-up screens
RTF, RTX RichText formatted text document
SAV:File that has been backed up or a saved position in a game
SCR}Script file used by telecommunications software, task automation software or a text or graphics from a screen capture program
DOS: either a screen image captured and saved by a screen capture program or a graphics image, probably used by a game; Windows: a screen saver program file
SCT)Lotus Manuscript screen capture text file
SCX.Graphics file for RIX/EGA and ColoRix programs
SDA8Descriptive information file for SDN compressed archives
SDNsCompressed archived file distributed by SDN (Shareware Distribution Network) International. Unpacked using PAK.EXE
Printmaster "name file"
SETIBackup set file used with Microsoft and Norton Backup; various other uses
SFS9Hewlett Packard HP softfont file indicating a screen font
SHP!Printmaster graphics library file
A signature; either a short message file attached to the end of email or USENET posts or a configuration or registration file for a program
SIT0Macintosh format StuffIt compressed archive file
SK0SideKick Plus (DOS) utility program overlay file
SND(Sound file; used by several applications
SQL-format database file
Setup information file used by Microsoft program installer; not always safely erasable; may be needed for partial installation and uninstallation
Style sheet for WordPerfect
SYSjDevice driver file or, in the case of SYS files in the root directory, configuration files for system boot
Tape ARchive file; usually created on a UNIX machine. Tar allows several files to be "chained" together for ease of transportation, especially with large numbers of small files (saves the user having to type in multiple file names at the command prompt)
TBKIWindows ToolBook program file; needs the ToolBook runtime library to work
TGAUTarga-format graphics file; all-text information, can actually be read and understood
THNGThumbnail file; a reduced-size sample usually of audio or graphics data
THS8Thesaurus file for WordPerfect and other word processors
Tagged Image File Format graphics file; used as a high-resolution picture format for transporting graphics data across platforms
TMPiTemporary work file; almost always erasable; if still in use the system will not permit them to be erased
TOC?Table of contents file used in many different types of programs
TOS(Program file used by the Atari ST/STe/TT
TRM[Terminal definition file used by Windows Terminal and other DOS terminal emulation programs
Translation file; used to t&
ranslate one type of data for use in another program, translation tables for keyboard layouts for different countries, or configuration information for foreign-language use of a program
TST.Test file; used by many different applications
TTF3TrueType format font for Windows, OS/2 or Macintosh
FhHDz
TUT4Tutorial file; could be any data type (usually text)
Plain text file
UC2CCompressed file archived using UltraCompressor II from Ad Infinitum
UPD\Update file; usually a text file containing new product information or program usage history
UU?pUuencoded binary file; a binary file converted to text in a form that allows it to be shared via USENET or email
Microsoft Visual Basic control file; similar to a DLL except exclusively designed for Visual Basic. Contains data relating to the layout of specific controls on the screen
SoundBlaster audio sound file
VXD.Device driver file used by Windows 95 or newer
SoundBlaster audio sample file
Quattro Pro spreadsheet file
WBT7A batch file program used by Norton Desktop or WinBatch
WK?VLotus 1-2-3 spreadsheet file; number represented here by ? is the 1-2-3 version number
WKE.Lotus 1-2-3 educational version worksheet file
Quattro spreadsheet file
Lotus 1-2-3 spreadsheet file
WMF%Windows Metafile graphics format file@D
6rJ8l
WordPerfect data file
WPG3WordPerfect Graphics file for version 5.0 and later
WordPerfect keyboard macro file
WordPerfect macro file
WRI0Formatted text document created by Windows Write
WRKFLotus Symphony spreadsheet file; used by other compatible spreadsheets
ZIP-compressed archive file using GZIP or a compatible program; a form of compression used mainly on UNIX systems but becoming popular on the Internet; also a compressed file used in many Windows software installations
Compressed archive file created using PKZIP or a related program which uses PKZIP's file format. Also a tutorial data file used by Quicken
ZOO7Compressed archive file created by ZOO.EXE; seldom used
Quicken standard file format (text file) to establish a means for transferring accounts files between applicaitions via inport/export features.
Psion Series 3 Agenda
Psion Series 3 Data
Psion Series 3 Jotter file
RTF, RTX
HTMLFHypertext Markup Language (HTML) file; a World Wide Web-formatted page
HYC%Hyphenation list file for WordPerfect
ICE7Archive file compressed by LHice or compatible software
ICO*Icon graphics file used by Windows or OS/2
IDFEConfiguration file used by Windows 95 and some other Windows programs
FoxBASE database index file
IFF:Amiga graphics file used in classics like Deluxe Paint x.x
IMAOImage file; possibly a disk image created by a disk copy program; has many uses
IMGyGEM Paint graphics file or Atari ST metafile which can often be used by desktop publishing programs; also many other uses
INCIIncremental backup file used by Microsoft Backup, also a programming file
Information file, usually a text file; in DOS, usually a text file that describes a program; in Windows, a program used in the setup process or by a specific program to store certain parameters
INI[Windows initialization file; stores the user's personal settings for a program Introduction
KEYfKeyboard macro definition files, or a file indicating the state of registration of a piece of software
DIB?Device-independent bitmap graphics file; used mainly by Windows
DIC*Dictionary file used by a spelling checker
DIFvData Interchange Format ASCII files used by spreadsheets, or differential backup catalog file used by Microsoft Backup
DIR[Usually an Mscreate.dir file used in installing Microsoft Windows NT or Windows 95 products
Text file found in PKZIP-compressed files that automatically generates a description of the software when viewed on specially-configured BBSs. These files usually provide information that can save a lot of test-running.
DJP@Hewlett Packard softfont file for HP Deskjet-compatible printers
Windows or OS/2 Dynamic Link Library file; a program that requires another program to run. Unlike DOS OVL files, DLL's can be used by more than just the program they came with
DOCSFormatted text file most commonly used my Microsoft Word, Word Viewer and Word pad.
DOTUDocument template file used by Windows word processors, particularly Word for Windows
DRVnHardware device driver file; usually loaded at DOS/Windows boot-up to configure and access hardware components
DRWVCorelDraw graphics file; also used by other graphics programs such as Micrografix Draw
DESQview configuration file
DVR(Device driver file; seldom used any more
AutoCAD drawing file
Autodesk Drawing Interchange
Encapsulated PostScript data file usually used by desktop publishing programs; more often used now to provide documents via the Internet which can be viewed on many platforms
PZ><>0D>Hlb
OPL"Psion Series 3 program source code
SPR'Psion Series 3 Sheet (Spreadsheet) file
Psion Series 3 Sound File
Psion Series 3 Word file
Psion Series 3 World file
Corel Clipart file
Macintosh PICT graphics file
Photoshop graphics format
Microsoft Publisher (DTP) file
MBM0Psion Series 5 Multi Bitmap grahpics file format
OPO+Psion Series 5 compiled OPL 'runnable' file
OPXYPsion Series 5 Dynamic Link Library file extentions for its OPL language. Written in C++
CDA/CD Audio Track file - tracks found on music CDs
Windows Cursor file
Kudo Read Clipart file viewer
JBF'Paint Shop Pro image album broswer filem@
Table1
*Extension:
2Description:
Arial
Arial
QDB$Quicken (accounts package) data file
RAM;Real Audio stream (used for playing audio off the internet)
MPEG3 Compressed audio files. Music/sound files usually found on the net due to the high compression rates achieved making them more 'downloadable'.
APP)Psion Series 5 Program file - executable.
Table1
*Extension:
2Description:
Arial
Arial
Table1
ColA1
ColB1
ColA2
ColB2
ColA3
ColB3
Index1
ColA1
pA1.0 About
This database is not FREE. It forms part of a program called Green Pages which costs
5 to register. You may evaluate it for 30 days after which you should remove it or register it. Many other databases are included in this registration fee. Check the below URL for more details.
1998 Gareth Brandwood
GDBwood@aol.com
http://users.aol.com/gbrandwood
QDB$Quicken (accounts package) data file
RAM;Real Audio stream (used for playing audio off the internet)
MPEG3 Compressed audio files. Music/sound files usually found on the net due to the high compression rates achieved making them more 'downloadable'.
APP)Psion Series 5 Program file - executable.
A1.0 About
This database is not FREE. It forms part of a program called Green Pages which costs
15 to register. You may evaluate it for 30 days after which you should remove it or register it. Many other databases are included in this registration fee. Check the below URL for more details.
1998 Gareth Brandwood
gareth@brandwood.force9.co.uk
http://www.brandwood.force9.co.uk
QDB$Quicken (accounts package) data file
RAM;Real Audio stream (used for playing audio off the internet)
MPEG3 Compressed audio files. Music/sound files usually found on the net due to the high compression rates achieved making them more 'downloadable'.
APP)Psion Series 5 Program file - executable.
@This database is not FREE. It forms part of a program called Green Pages which costs
5 to register. You may evaluate it for 30 days after which you should remove it or register it. Many other databases are included in this registration fee. Check the below URL for more details.
1998 Gareth Brandwood
gareth@brandwood.force9.co.uk
http://www.brandwood.force9.co.uk
QDB$Quicken (accounts package) data file
RAM;Real Audio stream (used for playing audio off the internet)
MPEG3 Compressed audio files. Music/sound files usually found on the net due to the high compression rates achieved making them more 'downloadable'.
(.txt)