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-
- INDEX OF FILE EXTENSIONS
-
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-
- In a previous DOS tutorial we discussed the topic of file
- extensions or file endings. One concept novices find helpful is
- an index explaining some of the more common file extensions. But
- first, let's review...
-
- As an example, let's pretend you have just put an unknown
- diskette in your floppy drive and typed the DIR command to
- display the disk contents. Here is what you might see:
-
- DELXTRA BAT 128 5-03-86 6:55p
- MSG1 TXT 384 5-03-86 7:10p
- PAY BAT 16 9-02-85 12:11p
- PCPAY DOC 64512 5-04-86 7:11a
- PCPR EXE 21457 5-03-86 3:29p
- PRNTDOC BAT 128 5-03-86 7:09p
- README BAT 2128 5-03-86 12:46
- README 6326 5-03-86 12:46p
- GO BAT 668 7-03-86 8:39a
- FILES565 TXT 1728 7-03-86 8:37a
-
- Let's select a file and explain how the DOS file extension
- works. From the above listing, let's select at random the third
- entry whose file listing is dissected below. Note carefully the
- file extension reference.
-
- Date of File creation
- |
- |
- PAY BAT 16 9-02-85 12:11p --- Time of file creation
- | | |
- | | File size in bytes
- | |
- | |
- PAY.BAT ----- PAY.BAT is the FULL filename including extension
- | |
- | |
- | This is the file extension: BAT
- |
- |
- This is the filename: PAY
-
- Again, PAY.BAT is the full DOS filename you might use when
- typing a DOS command such as COPY A:PAY.BAT B:
- The above command, by the way, means copy the file PAY.BAT from
- the A: drive to the B: drive.
-
- Note that the file extension is BAT. This is very important for
- consideration within the following index.
-
- An experienced user who understands the value of the file
- extension would immediately guess that the file extension BAT
- means that this file is a batch file which can be run to execute
- a program. With that in mind, presented below is an alphabetized
- listing of the more commonly seen DOS file extensions...
-
-
- . A file which has no extension is probably an ASCII text
- file containing instructions or documentation. Use
- the DOS TYPE command or simply load the file into your
- word processor to view or print.
-
- .$$$ A temporary file. Usually these type of files are erased
- later during program execution.
-
- .1ST Frequently this is associated with files such as
- README.1ST which means "readme first" and is a
- instruction/documentation file. Use the DOS type
- command (e.g., TYPE README.1ST) or you could load
- the file into your word processor to read.
-
- .AFM Adobe postscript file
-
- .ALL Wordperfect printer and font control file.
-
- .ANS ANSI graphics file.
-
- .ARC Compressed archive file. Can be uncompressed with any
- of several unarchiving utilities such as PKUNPAK.EXE.
-
- .ARJ Compress archive file produced by the ARJ.EXE program.
- You will need ARJ to unpack this.
-
- .ART. First Publisher graphics file.
-
- .ASC Usually this is an ASCII file which contains
- instructions which can be viewed and read.
-
- .ASM Assembly language source code. Usually ASCII text which
- can be viewed.
-
- .BAK Backup file. Copy of an early file version.
-
- .BAS A program written in Basic. Use the QBasic or GWBasic
- interpreter which comes with DOS to run this program.
-
- .BAT Batch file program which can be run just by typing the
- filename and pressing enter/return key. Do not type the
- file extension.
-
- .BIT Lotus Manuscript graphics file.
-
- .BLD A Basic file. Loads with BLOAD utility.
-
- .BMP Wallpaper background graphics file for Windows.
-
- .C Source code for program written in C programming
- language.
-
- .CDR Corel Draw graphics file.
-
- .CFG Configuration file for a software program. Sometimes the
- program uses this to run. Contains settings which can
- be modified.
-
- .CGM Computer graphics metafile.
-
- .COB COBOL language source code file.
-
- .COM Command file which can be run or executed. Just type
- the filename to start the program. Don't type the file
- extension.
-
- .CPI Code page info file for foreign character symbols.
-
- .CPL Windows control panel file.
-
- .CRF Cross Reference File.
-
- .CUT Dr. Halo graphics file.
-
- .DAT Any file containing data. Might also be a configuration
- file.
-
- .DBF Database file containing data. Used by many popular
- database programs.
-
- .DCT Dictionary file. Possibly associated with a word
- processing program.
-
- .DEV Device driver.
-
- .DHP Dr. Halo graphics file.
-
- .DIC Dictionary file.
-
- .DIF Data Interchange Format file. ASCII text files which can
- be used by spreadsheets and some database programs.
-
- .DLL Windows dynamic link library file.
-
- .DOC Documentation or text file containing instructions.
- Use the DOS type command or simply load into your
- word processor to read.
-
- .DRV Device Driver file which links to installed hardware
- such as a mouse or external CR ROM item.
-
- .DRW Corel Draw graphics file.
-
- .DWG Autocad graphics file.
-
- .DXF Autocad graphics file.
-
- .EPS Encapsulated Postscript file.
-
- .EXE An executable file which can be run. Type the filename
- without the file extension to run the program then press
- the enter/return key.
-
- .FNT Font file for text/characters.
-
- .FON Font file for text/characters.
-
- .FOR Fortran language source code file.
-
- .FOT Windows file for TrueType outline typeface.
-
- .FOX Foxbase database file.
-
- .FRM A form.
-
- .GDI GEM metafile.
-
- .GIF Contains a graphics file or picture. Graphics
- Interchange Format. Use a graphics viewer to display the
- picture.
-
- .GRP Windows Group data file.
-
- .GXI Show Partner Graphics File.
-
- .HLP Help file. Sometimes this can be viewed as with any
- ASCII text file.
-
- .HNT Hint file, usually for a game.
-
- .HPF Hewlett Packard Bitstream soft font file.
-
- .HPG Hewlett Packard graphics language file.
-
- .HST History file (usually ASCII text) showing development
- history of a program.
-
- .ICO Icon graphics file used by Windows.
-
- .IDX Foxbase database index file.
-
- .IFF Deluxe Paint II graphics file.
-
- .IMG GEM paint graphics file.
-
- .INF Information or text file which can be read.
-
- .INI Initialization file. Used with Windows and some other
- programs.
-
- .KEY Keyboard macro definition file.
-
- .LBM IFF file used by Deluxe Paint.
-
- .LIB Library file used by a programming language.
-
- .LST A list file, usually in ASCII text.
-
- .LTR A letter, usually ASCII text.
-
- .LZH Compressed archive file. Need LHA program to uncompress.
-
- .MAC MacPaint graphics file or a macro file of keyboard
- definitions and stored keystrokes.
-
- .MAN A Manual or file in ASCII containing the instructions
- for a program.
-
- .ME Usually the end of a READ.ME file. ASCII text which
- can be viewed for instructions.
-
- .MID MIDI audio file.
-
- .MNU Menu or mouse control file.
-
- .MOD Data interchange file used by Windows and DOS.
-
- .MSP Windows graphics file.
-
- .NAM PrintShop name file.
-
- .NDX Database index file.
-
- .NG Database file for Norton Guide.
-
- .NTX Database index file.
-
- .OBJ Object code file used by programming language.
-
- .OLD Backup or temporary file.
-
- .OVL Overlay program used by a larger software package.
-
- .OVR Overlay file.
-
- .PAK Compressed archive file. Use PAK.EXE program to unpack.
-
- .PAS Pascal language programming source code file.
-
- .PCC Z-Soft graphics file. Sometimes can be renamed a .PCX
- file and used with other graphics soft ware. Contains an
- image.
-
- .PCX PC Paintbrush graphics file. Contains an image.
-
- .PDF Printer definition file.
-
- .POG New Print Shop graphics file.
-
- .PNM Print Shop name file.
-
- .PRG A program source code file.
-
- .PRN A text file that can be printed or viewed. Contains
- instructions or viewable data.
-
- .PRS WordPerfect printer definition file.
-
- .PRT Text or documentation file which can be printed or
- viewed.
-
- .PSO PostScript PDL printer bitstream font file.
-
- .SAV Backup file or previous data.
-
- .SCR Script file used my a modem or telecommunications
- program.
-
- .SCX Graphics file for RIX or EGA program.
-
- .SDR Printmaster name file.
-
- .SHP Printmaster graphics file.
-
- .STY Style file for WordPerfect.
-
- .SYS A device driver. Usually this file is added to
- the CONFIG.SYS file in the root directory of the
- hard drive.
-
- .TGA Targa graphics file.
-
- .TIF Tagged image format file used by Aldus Pagemaker.
-
- .TMP Temporary or backup file.
-
- .TTF Windows file for TrueType fonts.
-
- .TUT Tutorial file.
-
- .TXT Text file, usually ASCII. Directions or documentation
- for a program. View using the DOS TYPE command or
- simply load into your word processor to view or print.
-
- .VOC Soundblaster sound file.
-
- .WAV Windows sound file.
-
- .WK1 Lotus spreadsheet file for version 2.0
-
- .WKE Lotus educational worksheet file.
-
- .WKQ Quattro spreadsheet file.
-
- .WKS Lotus spreadsheet file for version 1A.
-
- .WMF Windows metafile graphics file.
-
- .WPG WordPerfect graphics file.
-
- .WPM WordPerfect macro file.
-
- .WPK Wordperfect macro file for keyboard definition.
-
- .WRI Text file for Windows Write.
-
- .WRK Symphony spreadsheet file.
-
- .XLS Excel spreadsheet file.
-
- .ZIP Compressed archive file. Use PKUNZIP.EXE to unpack.
-
- .ZOO Compressed archive file. Use ZOO.EXE to unpack.
-
-
-
-
- TIP: Now here is a pop quiz! Go back to the directory listing
- at the beginning of this tutorial and see if you can determine
- the characteristics of each file, given the known file
- extensions discussed in this index!
-
- Tutorial finished. Have you registered PC-Learn to receive your
- bonus disks? Registration is encouraged. Shareware works on the
- honor system! Send $25 to Seattle Scientific Photography,
- Department PCL6, PO Box 1506, Mercer Island, WA 98040. Latest
- version of PC-Learn and two bonus disks shipped promptly!
-
-
-
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