| .bip |
Character Studio Biped File |
| .bfa |
Blowfish Encrypted File |
| .bml |
Bean Markup Language File |
| .backupdb |
Time Machine Backup Folder |
| .bgi |
BgInfo Configuration File |
| .bckp |
Ad-Aware Quarantined File |
| .bet |
BETA Source File |
| .bootskin |
Stardock Bootskin File |
| .blkrt |
Block Artist Image File |
| .bpa |
StorageSync Backup Archive |
| .bgt |
Graphics Accounts Data File |
| .bav |
AVG AntiVirus The Bat! Plugin File |
| .blt |
AIM Buddy List |
| .biz |
Broderbund Business Card File |
| .bme |
BeatMania 7-Key Song File |
| .ba |
Scifer External Header Archive |
| .bro |
Broadleaf Tree Model |
| .blb |
Dreamworks Resource File |
| .blob |
Binary Large Object File |
| .bvh |
Biovision Hierarchy Animation File |
| .b64 |
Base64 MIME-Encoded File |
| .bzip |
Bzip Compressed Archive |
| .bdic |
Chrome Dictionary File |
| .bdr |
Publisher Borders File |