| b3dm | Cesium Batched 3D Tiles Data |
| b4 | VTrain Data File |
| b4a | Native Instruments B4 II Data |
| b4p | Native Instruments B4 II Presets Data |
| b5 | MDBG Chinese-English Dictionary Data |
| VTrain Data File |
| b5l | BlindWrite 5 License Data |
| b64 | Base64 Encoded Data |
| b6l | BlindWrite License Data |
| b8 | Cubicomp PictureMaker Blue Channel Image Data |
| b83 | TI-83 Calculator Bundle Image |
| b84 | TI-84 Plus CE Bundle Image |
| ba1 | Windows Media Center Report Log |
| ba6 | TaxACT 2016 Tax Return Backup Data |
| Vector NTI BLAST Archive |
| ba7 | TaxACT 2017 Tax Return Backup Data |
| ba8 | TaxACT 2018 Tax Return Backup Data |
| ba9 | TaxACT 2019 Tax Return Backup Data |
| bab | Babble Data |
| babl | DeBabelizer Pro Data |
| bac | Avantrix Backup Plus Backup Data |
| back | RMCProfile Coefficient Data |
| backpack | Mammoet Backpack Word List |
| backup | Ad-Aware Backup Data |
| Navicat for MySQL Backup Data |
| pgAdmin Database Backup |
| backupdb | Time Machine Backup Folder |
| bad | Brutus Application Definition |
| DataFlex Bad File |
| Microsoft Exchange Non-Delivery Report Message |
| bada | Bada Data |
| badongo | Badongo File Info |
| baf | Pioneer DJS Interface Data |
| bafl | BurnAware File List |
| bag | AAICWpro Autoresponder Data |
| AOL Instant Messenger Buddy List |
| PMMail Mail Index |
| baggage | InstallAware Setup Dialog Baggage |
| bai | Bank Administration Institute Data File |
| bai2 | Bank Administration Institute Version 2 Data |
| bak | AcqURL Bookmark Database Backup |
| BSL Background Subtraction Data |
| Cast Soft wysiwyg Backup Data |
| Corel WordPerfect Document Backup |
| Finale Backup Data |
| Grade Organizer Backup |
| Microsoft SQL Server Database Backup |
| MobileTrans Backup Data |
| MRDS Database Backup |
| T-FLEX CAD Autosave Data |
| TBK Tracker Deleted Course INI |
| TED5 Backup |
| Visual UML Model Backup |
| VoCATS Modified Test Backup |
| baka | eXtendable Wad Editor BAKA Data |
| bak~ | AbiWord Auto-Saved Document |
| bam | SpliceV BAM Data |
| ban | MegaHAL Banned Words List |
| Sierra Print Artist Banner |
| banana | Banaranama Question Export Data |
| bap | Blaze Audio Wave Information |
| Visage Mpeg-4 ASCII Body Animation Parameters File |
| baroc | IBM Tivoli Enterprise Console Adapter Description |
| bartco | Bartco VMS Message Data |
| bas | ALEID2000 Basic Data |
| MODFLOW Basic Package |
| base | BioArray Software Environment Data |
| base64 | Base64 Encoded Data |
| bash_history | Bash History Data |
| basin | HEC-HMS Basin Model Settings |
| bass | Tekla Structures Bolt Assembly Data |
| battle | Robocode Battle Data |
| bav | The Bat! Anti-Virus Plugin |
| baw | BrainLED AlfaWave Session |
| baz | Acomba Accounting Suite Backup Data |
| bb | DVIPDFM Output Data |
| Papyrus Database Backup |
| bbd | Xilinx Black Box Definition |
| bbfw | iTunes Firmware Update |
| bbg | CyberSports for Basketball Game Data |
