ABK :::::::::: Corel Draw AutoBackup
ACL :::::::::: Corel Draw 6 keyboard accelerator
ACM :::::::::: Used by Windows in the system directory
ACP :::::::::: Microsoft Office Assistant Preview file
ACT :::::::::: Microsoft Office Assistant Actor file
ACV :::::::: OS/2 drivers that compress and decompress audio data
AD :::::::::: After Dark screensaver
ADB ::::::::::: Appointment data**** used by HP 100LX organizer
ADD ::::::::: OS/2 adapter drivers used in the boot process
ADM ::::::::: After Dark MultiModule screensaver
ADP ::::::::: Used by FaxWorks to do setup for fax modem interaction
ADR :::::::: After Dark Randomizer screensaver
AFM ::::::::: Adobe font metrics
AF2 ::::::::: ABC Flowchart file
AF3 ::::::::: ABC Flowchart file
AI :::::::: Adobe Illustrator drawing
AIF :::::::: Apple Mac AIFF sound
ALB :::::::::: JASC Image Commander album
ALL ::::::::::: Arts & Letters Library
AMS :::::::: Velvert Studio music module (MOD) file
ANC ::: Canon Computer Pattern Maker file that is a selectable list of pattern colors
ANI ::::::::::::::::: Animated Cursor
ANS :::::::::::::: ANSI ****
API :::::::::::: Application Program Interface file; used by Adobe Acrobat
APR :::::::::: Lotus Approach 97 file
APS ::::::::: Microsoft Visual C++ file
ARC ::::::::::: ::: LH ARC (old version) compressed archive
ARJ ::::::::::::::::::::; Robert Jung ARJ compressed archive
ART :::::::::::: Xara Studio drawing
ART :::::::::::::: Canon Crayola art file
ASA :::::::::::::::::::::::::::: Microsoft Visual InterDev file
ASC :::::::::::: ASCII ****
ASD ::::::::::::::::::: WinWord AutoSave
ASM ::: Assembler ******** source file
ASP ::: Active Server Pagean HTML file containing a Microsoft server-processed ******
ASP :::::::::: Procomm Plus setup and connection ******
AST :::::::::::: Claris Works "assistant" file
ATT :::::::::: AT&T Group 4 bitmap
AVI ::::::::::::::: Microsoft Video for Windows movie
AWD :::::::::::::::: FaxView ********