| Extension | File Description |
| .BDO | Uncommon Files |
| .BDP | Uncommon Files |
| .BDQ | Uncommon Files |
| .BDRUM1 | Uncommon Files |
| .BDS | Uncommon Files |
| .BDT | Uncommon Files |
| .BDU | Uncommon Files |
| .BDV | Uncommon Files |
| .BDW | Uncommon Files |
| .BDX | Uncommon Files |
| .BDY | Uncommon Files |
| .BDZ | Uncommon Files |
| .BE | Uncommon Files |
| .BE0 | Uncommon Files |
| .BE1 | Uncommon Files |
| .BE2 | Uncommon Files |
| .BE3 | Uncommon Files |
| .BE4 | Uncommon Files |
| .BE5 | Uncommon Files |
| .BE6 | Uncommon Files |
| .BE7 | Uncommon Files |
| .BE8 | Uncommon Files |
| .BE9 | Uncommon Files |
| .BEA | Uncommon Files |
| .BEACHBALL | Uncommon Files |
| .BEACON | Uncommon Files |
| .BEANS | Uncommon Files |
| .BEAT | Uncommon Files |
| .BEATWAVE | Uncommon Files |
| .BEB | Uncommon Files |
| .BEC | Uncommon Files |
| .BED | Uncommon Files |
| .BEE | Uncommon Files |
| .BEEP | Uncommon Files |
| .BEF | Uncommon Files |
| .BEG | Uncommon Files |
| .BEGIN | Uncommon Files |
| .BEGINNERS | Uncommon Files |
| .BEGINNING | Uncommon Files |
| .BEH | Uncommon Files |
| .BEHEADER | Uncommon Files |
| .BEHINDTHEW | Uncommon Files |
| .BEI | Uncommon Files |
| .BEJ | Uncommon Files |
| .BEJEWELED2 | Uncommon Files |
| .BEK | Uncommon Files |
| .BEL | Uncommon Files |
| .BELL | Uncommon Files |
| .BELL2 | Uncommon Files |
| .BELLS | Uncommon Files |
| .BELOW | Uncommon Files |
| .BEM | Uncommon Files |
| .BEN | Uncommon Files |
| .BEO | Uncommon Files |
| .BEP | Uncommon Files |
| .BEQ | Uncommon Files |
| .BER | Uncommon Files |
| .BES | Uncommon Files |
| .BET | Uncommon Files |
| .BETWEEN | Uncommon Files |
| .BEU | Uncommon Files |
| .BEV | Uncommon Files |
| .BEW | Uncommon Files |
| .BEX | Uncommon Files |
| .BEXPK | Uncommon Files |
| .BEY | Uncommon Files |
| .BEYOND | Uncommon Files |
| .BEYOND2000 | Uncommon Files |
| .BEZ | Uncommon Files |
| .BF0 | Uncommon Files |
| .BF1 | Uncommon Files |
| .BF2 | Uncommon Files |
| .BF3 | Uncommon Files |
| .BF4 | Uncommon Files |
| .BF5 | Uncommon Files |
| Extension | File Description |
| .BF6 | Uncommon Files |
| .BF7 | Uncommon Files |
| .BF8 | Uncommon Files |
| .BF9 | Uncommon Files |
| .BFB | Uncommon Files |
| .BFD | Uncommon Files |
| .BFE | Uncommon Files |
| .BFFM | Uncommon Files |
| .BFG | Uncommon Files |
| .BFH | Uncommon Files |
| .BFI | Uncommon Files |
| .BFJ | Uncommon Files |
| .BFK | Uncommon Files |
| .BFL | Uncommon Files |
| .BFLI | Uncommon Files |
| .BFM | Uncommon Files |
| .BFN | Uncommon Files |
| .BFO | Uncommon Files |
| .BFP | Uncommon Files |
| .BFQ | Uncommon Files |
| .BFR | Uncommon Files |
| .BFT | Uncommon Files |
| .BFU | Uncommon Files |
| .BFV | Uncommon Files |
| .BFW | Uncommon Files |
| .BFY | Uncommon Files |
| .BFZ | Uncommon Files |
| .BG | Uncommon Files |
| .BG0 | Uncommon Files |
| .BG1 | Uncommon Files |
| .BG2 | Uncommon Files |
| .BG3 | Uncommon Files |
| .BG4 | Uncommon Files |
| .BG5 | Uncommon Files |
| .BG6 | Uncommon Files |
| .BG7 | Uncommon Files |
| .BG8 | Uncommon Files |
| .BG9 | Uncommon Files |
| .BGA | Uncommon Files |
| .BGB | Uncommon Files |
| .BGC | Uncommon Files |
| .BGCF | Uncommon Files |
| .BGD | Uncommon Files |
| .BGDB | Uncommon Files |
| .BGE | Uncommon Files |
| .BGF | Uncommon Files |
| .BGG | Uncommon Files |
| .BGH | Uncommon Files |
| .BGJ | Uncommon Files |
| .BGK | Uncommon Files |
| .BGM | Uncommon Files |
| .BGN | Uncommon Files |
| .BGO | Uncommon Files |
| .BGP | Uncommon Files |
| .BGQ | Uncommon Files |
| .BGR | Uncommon Files |
| .BGS | Uncommon Files |
| .BGU | Uncommon Files |
| .BGV | Uncommon Files |
| .BGW | Uncommon Files |
| .BGX | Uncommon Files |
| .BGY | Uncommon Files |
| .BGZ | Uncommon Files |
| .BH0 | Uncommon Files |
| .BH1 | Uncommon Files |
| .BH3 | Uncommon Files |
| .BH4 | Uncommon Files |
| .BH5 | Uncommon Files |
| .BH6 | Uncommon Files |
| .BH7 | Uncommon Files |
| .BH8 | Uncommon Files |
| .BH9 | Uncommon Files |
| .BHA | Uncommon Files |
| .BHB | Uncommon Files |
| .BHC | Uncommon Files |
