| ben | SiSoftware Sandra Benchmark Data |
| bepf | Big Endian Prebuilt Format File |
| bes | Bitter End MOBY POS Database |
| bes | WRAP Beginning-Ending Storage Data |
| bevel | FontTwister Letter Bevel Data |
| bew | PTV VISSIM Cost Data |
| bex | Bizagi Process Modeler Exported Model |
| bex | PGP Binary Extracted Public Key |
| bexpk | PGP Binary Extracted Public Key |
| bez | Bend-Tech v3 Part File |
| bez | Geomview Bezier Surface Data |
| bf | libigl Skeletal Data |
| bf2 | BIDFAX 2000 Database |
| bfd | Binary File Descriptor Data |
| bfi | Blaise Database BFI Data |
| bfmv | BfMeshView Workspace Data |
| bfq | SmartWare Backup Query Definition |
| bfr | SmartWare Backup Report Definition |
| bfs | SmartWare Sort Definition Backup |
| bft | SmartWare Backup Transaction Definition |
| bfw | SmartWare Backup Cross-tab Definition |
| bfx | SmartWare Definition Backup |
| bgc | PnET-BGC Model |
| bgdb | Global Virtual Academy E-learning Data |
| bgeo | Houdini Geometry Data |
| bgf | Molecular Simulations BIOGRAF Format File |
| bgf | Zemax Binary Glass Catalog |
| bgo | BigOven Database |
| bgr | Girder Binary Plugin |
| bgt | Graphic Accounts Data |
| bhd | Backup Exec Deduplication Storage |
| bhf | PCAnywhere Data |
| bhl | BlockHashLoc Data |
| bhm | BHM Hierarchical File Format Data |
| bho | Behold Organize Data |