| bbi | LinkOne Publisher Book Data |
| bbj | BuilderUI Batch Job |
| bbk | Sage Fixed Assets Database Backup |
| Treepad Database Blob Backup |
| bbl | E-Sword Bible Data |
| bbli | E-Sword Bible Module |
| bblx | E-Sword Bible Data |
| bbma | BonziBuddy Data |
| bbn | Bridge Bidding Notation Data |
| bbox | Geomview Simple Bounding Box Data |
| bbp | Geomview Bezier Bicubic Patches Data |
| bbq | BitBeamer Transfer Queue Data |
| bbt | BTwin Database |
| CyberSports for Basketball Team Data |
| bbv | PPLive Cache File |
| bbw | Band-in-a-Box Interface |
| bbx | BrainBox Neural Net Data |
| bbz | BerryBuzz Backup Data |
| bc | Adobe Bridge Cache Data |
| BitComet File |
| Sierra Print Artist Business Card |
| bc! | BitComet File |
| bc2 | Blue Kenue Boundary Conditions Data |
| 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 |
| bc9 | Cashflow Manager v9 Backup |
| bca | Allplan Catalog Backup |
| bcd | ARM RealView Board/Chip Definition File |
| Digital Library Data |
| bcf | Adobe PageMaker Color Library |
| Belarc Advisor Content Data |
| BIM Collaboration Format Data |
| Binary Counterpart Data |
| MODFLOW Block-Centered Flow Package |
| MyLabel Designer Deluxe Data |
| bcf2 | Binary Counterpart Data |
| bcg | BusinessCards MX Gradients Data |
| bch | dBASE Batch Process Object |
| Eclipse IDE Commands Data |
| Entrypoint 90 Batch Data |
| MEADEP Query Data |
| Oracle Documaker Batch |
| OS/2 Warp CID Batch |
| PCCharge Offline Transaction Log |
| bci | Belarc Advisor Report |
| bck | Backup Express Pro Data |
| Ewisoft Website Builder Backup |
| HP OpenVMS Backup File |
| bckp | Ad-Aware Quarantined File |
| bckup | Time Machine Backup Data |
| bcl | Cimplicity HMI Basic Control Language Script |
| Illumina CASAVA Base Call |
| bclim | Nintendo 3DS BCLIM Sprite |
| bcm | Adobe Bridge Cache Data |
| Microsoft Office Business Contact Manager Data |
| Microsoft Works Communications Script Backup |
| bcmap | Adobe Acrobat Binary Character Mapping Data |
| bcmdl | Nintendo 3DS BCMDL Model Data |
| bcml | Biological Connection Markup Language Document |
| bcmr | BC Framer Data |
| bcmx | Microsoft Office Business Contact Manager Customization |
| bco | Allplan Configuration Backup |
| bcp | BlackMagic Custom Palette Data |
| Microsoft SQL Server Data Replication Data File |
| bcpkg | Beyond Compare Settings Package |
| bcs | Boland LCD Calibration Data |
| BusinessCards MX Style |
| Windows 95 Browse Data |
| bcss | Beyond Compare Snapshot Data |
| bct | Adobe Bridge Thumbnail Cache |
| bctpuri | Vuze BCTP URI Data |
| bcuri | BitComet URI Data |
| bcx | Beam-Report Standard Definition Data |
| bcz | Siemens Teamcenter Zipped Briefcase File |
| bd2 | Lacerte Tax Data |
| bd3 | Lacerte Tax Data |
| bd4 | Bridge Designer 4 Data |
