| .blob |
Binary Large Object File |
| .b64 |
Base64 MIME-Encoded File |
| .bsa |
Bethesda Softworks Archive |
| .bau |
Apache OpenOffice AutoText File |
| .bjo |
TabRite Tablature File |
| .bpw |
Bitser Password File |
| .bdmv |
Blu-ray Disc Movie Information File |
| .bar |
Age of Empires 3 Data File |
| .brw |
Calyx Point Borrower File |
| .bks |
NTBackup Settings File |
| .bmk |
BillMinder Backup File |
| .bdl |
CoCreate Bundle File |
| .bcc |
Calendar Creator File |
| .bm2 |
Boardmaker Interactive Board File |
| .bdc |
Babylon Dictionary File |
| .bmd |
MU Online Game Data File |
| .btapp |
uTorrent App |
| .blz |
N-Gage Mobile Video Game File |
| .blk |
AutoCAD Block Template File |
| .blw |
Adobe Photoshop Black and White Presets File |
| .brx |
BREW Application Resource File |
| .bfs |
FlatOut Game Data File |
| .bzabw |
Compressed AbiWord Document |
| .bff |
Backup File Format |