Home of the original IBM PC emulator for browsers.
The Microsoft systems programs and language products commonly use the
following filename extensions:
╓┌─────────────────┌───────────────────┌─────────────────────────────────────╖
Extension Program/System Description
──────────────────────────────────────────────────────────────────
.@@@ MS-DOS Backup ID file
.$$$ EDLIN Backup filename if out of disk space;
error condition
.ASC Generic ASCII text file
.ASM MASM Assembly-language source code
.BAK Generic Backup file
.BAS BASIC BASIC language source code
.BAT MS-DOS Batch file (contains MS-DOS command
lines)
.BIN Generic Binary file
.C C C language source code
.CAL Windows Calendar file
.COB COBOL COBOL language source code
.COD Generic Object listing file
.COM MS-DOS Executable program file
.CRD Windows Cardfile file
.CRF MASM Cross-reference file
.DAT Generic Data file
.DBG COBOL Debug file
.DEF Windows Module definition file
.DOC Generic Documentation or document file
.DRV Generic Driver file
.ERR Generic Error file
.EXE MS-DOS Executable program file
.FNT Generic Font file
.FON Generic Font file
.FOR FORTRAN FORTRAN language source code
.GRB Windows Grab file (snapshot)
.H C Include file
.HEX MS-DOS INTEL hexadecimal format file
.HLP Generic Help file
.INC Generic Include file
.INI Windows Initialization file
.INT COBOL Object file
.LIB Generic Library file
.LST Generic List file
.MAP Generic Address map file
.MOD Generic Module file
.MSG COBOL Message file
.MSP Windows Windows Paint file
.OBJ Generic Relocatable object module
.OVL Generic Overlay file
.OVR COBOL Compiler overlay file
.PAS PASCAL PASCAL language source code
.PIF Windows Program information file
.QLB Generic Library file for Microsoft's Quick
products
.RC Windows Resource script file
.REF CREF Cross-reference listing file
.RES Windows Compiled resource file
.SCR Generic Script file
.SYM Generic Symbol file
.SYS Generic System file or device driver
.TMP Generic Temporary file
.TRM Windows Terminal file
.TXT Generic Text file or Windows Notepad file
.WRI Windows Write file
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