| blz | Crossword Power Tools Crosswords Library |
| blz | TeamViewer Blizz Recorded Session |
| blz | TeamViewer Blizz Session Data |
| bm2 | Boardmaker Board |
| bm3 | Sony Ericsson PC Suite Backup |
| bmap | Block Map File |
| bmb | CHESSBD/SLICS Bounding Box Data |
| bmb | Onyx BAMBOO Modeler Data |
| bmc | Microsoft Windows Terminal Server Client Bitmap Cache |
| bmd | Gamecube BDL Model Data |
| bmd5 | BookmarkingDaemon Data |
| bmdx | eXtendable Wad Editor BMDX Data |
| bmf | Turbo FloorPlan 3D BMF Data |
| bmi | Autodesk 3D Studio Max BMI Plugin |
| bmi | Blaise Metafile |
| bmk | BillMinder Backup Data |
| bmk | WindLDR Bookmarks File |
| bmk | Windows Help Bookmark |
| bml | Blaise Mode Library |
| bmml | Balsamiq Mockups Markup Language File |
| bmp | BPM Studio Skin Bitmap |
| bmpenx | Egis Encrypted BMP Data |
| bmpskin | Blaze Media Pro Skin |
| bmpx | Egis Encrypted BMP Data |
| bmr | Sybase PowerDesigner Multimodel Report Backup |
| bmrb | BMRB Chemical Shift List |
| bmrl | Balsamiq Mockups Data |
| bms | Backup Magic Backup Set |
| bms | BeMusic Script |
| bms | BIOWRAP Multi-Layer Security Data |
| bmsh | Edge Mesh Data |
| bmsk | STK Body Mask File |
| bn2 | Bojanov Encryptor Encrypted File |
| bn7 | OxMetrics Binary Data |
| bnb | Backnine Bookie Data |
