| bafl | BurnAware File List |
| bag | PMMail Mail Index |
| bai | Bank Administration Institute Data File |
| bak~ | AbiWord Auto-Saved Document |
| bap | Blaze Audio Wave Information |
| bap | Visage Mpeg-4 ASCII Body Animation Parameters File |
| baroc | IBM Tivoli Enterprise Console Adapter Description |
| base | BioArray Software Environment Data |
| base64 | Base64 Encoded Data |
| bash_history | Bash History Data |
| bav | The Bat! Anti-Virus Plugin |
| baw | BrainLED AlfaWave Session |
| bbd | Xilinx Black Box Definition |
| bbi | LinkOne Publisher Book Data |
| bbk | Sage Fixed Assets Database Backup |
| bbk | Treepad Database Blob Backup |
| bblx | E-Sword Bible Data |
| bbq | BitBeamer Transfer Queue Data |
| bbt | BTwin Database |
| bbv | PPLive Cache File |
| bbw | Band-in-a-Box Interface |
| bbx | BrainBox Neural Net Data |
| bbz | BerryBuzz Backup |
| bc | BitComet File |
| bc! | BitComet File |
| bc3 | FIEBDC Database |
| bc4 | CoStar Barcode Label Data |
| bc6 | Cashflow Manager 2006 Backup |
| bc7 | Cashflow Manager v7 Backup File |
| bc8 | Cashflow Manager v8 Backup File |
