| Abbreviation | Definition |
|---|---|
| BBP | Bezier surface file |
| BBS | Bulletin Board System announcement or text information |
| BBS | FTN software Hudson-style messagebase file |
| BCF | Binary Cmx Format |
| BCH | Batch process object file (dBASE Application Generator) |
| BCH | Datafile (Datalex EntryPoint 90) |
| BCK | Backup (VMS/VAX) |
| BCM | MicroSoft Works Comms script backup file |
| BCO | Bitstream Outline font description |
| BCO | Outline font description ( Bitstream) |
| BCP | Borland C++ Makefile |
| BCS | Windows95 Browse information |
| BCT | Clarion Backup dictionary |
| BCW | Borland C++ Workspace Environment settings |
| BDAV | Blu-Ray Disc Audio Visual |
| BDB | Database backup (MS Works) |
| BDC | Lingvo Dictionary file |
| BDF | Binary update file (BUpdate) |
| BDF | Bitmap Distribution Format file (font - glyph) (Adobe - X11) |
| BDF | Egret Datafile |