B - BAK
-
- B - BASIC language source file
- B!K - Scenery file
- B!K - Flight Simulator Scenery File ( Microsoft Corporation )
- B&W - Atari/Macintosh black and white graphic
- B&W - 1st Reader Mono binary screen image
- B00 - Blindwrite file
- B01 - Constitutional descriptor file
- B02 - ADP Payroll
- B1 - Progress database
- B1 - 21st Century Mahjong
- B1 - Cats Mah Jong Solitaire
- B1 - Open source backup and archive file format
- B16 - 16- colour Bitmap PCO Image File
- B16 - PCO image format
- B1N - 1st Reader Mono and color binary screen image
- B2 - Progress Database File ( Progress Software Corporation )
- B2A - Btoa Encoded File
- B2D - Source Code File
- B2D - Brutus2D Source Code File ( Pewter Software )
- B2Z - B2Z dVS Model / Object Header
- B2Z - B2Z dVS model or object file
- B30 - ABC Ventura publisher printer font
- B32 - Msdos Bcc file
- B32 - BCC file
- B36 - PDP-10 BLISS -36 Compiler Source
- B3D - 3D Builder File
- B3D - Boso View Express Structure Mesh Diagram ( Mackoy )
- B3D - Maxon Bodypaint 3D texture file
- B3D - BDE multipath movie digital viewer file
- B3D - Blitz3D /Max/ Plus Texture or Mesh File ( Blitz Research Ltd.)
- B3D - 3D Builder
- B3D - Blitz3d object Header
- B4 - Helix Nuts and Bolts file
- B44 - Misc
- B4S - Playlist File
- B4S - Winamp 3+ Playlist
- B4U - Before You Know It file
- B4U - ReadMe File
- B5 - CEDICT Chinese / English Dictionary ( Erik E. Peterson )
- B5I - BlindWrite image file
- B5I - BlindWrite 5 Disk Image
- B5I - DAEMON Tools
- B5I - IsoBuster CD/DVD Image File ( Container ) ( Smart Projects )
- B5L - BlindWrite image file
- B5S - Numerical Controlled Machine File
- B5T - BlindWrite image file
- B5T - BlindWrite 5 Disc Track Information File
- B5T - DAEMON Tools
- B5T - BlindWrite Ver. 5 Table of Contents File (VSO- Software )
- B64 - Base 64 MIME - encoded File
- B64 - StuffIt Encoded encoded file archive ( Base64 )
- B6I - Possibly splitted RAR archive
- B6I - BlindWrite image file
- B6I - BlindWrite 6 Disc Image
- B6T - BlindWrite 6 Track Information File
- B6T - BlindWrite TOC Header
- B8 - Raw graphic file (Piclab Plane II)
- B_W - Atari/Macintosh black and white graphic
- BA - Scifer External Header Archive
- BA - Binary Archive - Scifer Archiver and Compression [ External Header Mode ]
- BA - Scifer Archiver and Compression External Archive Format ( Senthil Kumar R)
- BA$ - MS Compressed BAS Decompress with UNPACK.EXE.
- BA$ - MS compressed BAS
- BA0 - Unknown file extension
- BA2 - address book file
- BAAN - baan database p- code object format
- BAB - Babble ! Data File
- BABL - DeBabelizer
- BAC - Backup File
- BAC - Basic compiled program file
- BACK - RMCProfile coefficient file
- BACKPACK - Backpack Word List ( Mammoet Software )
- BACKUP - Navicat for MySQL backup file
- BACKUP - Ad- Aware Reference File ( Lavasoft )
- BACKUP - Ad- Aware reference
- BACKUP - Database backup file
- BACKUP - Unknown Apple II File
- BACKUPDB - Apple Time Machine backup folder
- BACKUPDB - Time Machine Backup Folder
- BAD - Oracle bad file
- BADONGO - BaDonGo file info Header
- BADONGO - Badongo file information service
- BAF - Infinity Game Engine Script ( BioWare Corp.)
- BAF - BioWare Infinity game engine script
- BAFL - BurnAware File List
- BAFL - BurnAware Free compilation file
- BAG - AOL Instant Messenger (AIM) buddy list
- BAG - AOL 6 Organizer file
- BAG - PMMail 2000 Mail Index File ( Blueprint Software Works )
- BAG - Bag Archive File
- BAG - PMMail /2 Mail Index File
- BAG - AOL 6 Organizer ( America Online Inc.)
- BAG - Bag archive Header
- BAG - OS/2 Netfinity Manager Sysinfo File
- BAG - AAICWpro autoresponder file
- BAG - Emperor : Battle for Dune game file
- BAH - BioWare Infinity game engine file
- BAI - Bank Administration Institute (BAI) file format
- BAI - BUILD2WIN Add-in ( BID2WIN Software Inc.)
- BAK - Backup file
