| br31 | BMW iDrive Multimedia Data |
| br32 | BMW iDrive Multimedia Data |
| br48 | BMW iDrive Multimedia Data |
| bragg | RMCProfile Bragg Scattering Data |
| braggout | RMCProfile Bragg Profile Output Data |
| brain | Personal Brain v6 File |
| brb | Bryce Object Export |
| brc | WRAP Beginning Reservoir Concentration Data |
| brdf | Disney BRDF File |
| bre | Breuckmann 3D Scanner Data |
| bre | Bible Reference Exporter Extracted List |
| bri | SeisWorks Bricked Seismic Data Format File |
| bridgecache | Adobe Bridge Cache Data |
| brml | Big Red Markup Language Code |
| brn | Personal Brain File |
| brn | BrainStorm Data |
| brp | E-Sword Bible Reading Plan |
| brpx | E-Sword Bible Reading Plan |
| brres | BRRES Resource Package |
| brs | Adobe RoboHelp Browse Sequence |
| brs | WRAP Beginning Reservoir Storage Data |
| brstmspm | eXtendable Wad Editor BRSTMSPM Data |
| bru | Brutus Restore Data |
| brushset | Procreate Brush Set Data |
| brv | Brave Viewer Thumbnail Cache |
| brw | Calyx Point Borrower |
| bs4 | Mikogo Recorded Session |
| bs7 | Windows 7 Boot Updater Skin |
| bsb | Xilinx Base System Builder Playback File |
| bsb | NOAA Nautical Charts |
