| Extension | File Description |
| .FH2 | Uncommon Files |
| .FH3 | Uncommon Files |
| .FH4 | Uncommon Files |
| .FH5 | Uncommon Files |
| .FH6 | Uncommon Files |
| .FHA | Uncommon Files |
| .FHB | Uncommon Files |
| .FHE | Uncommon Files |
| .FHG | Uncommon Files |
| .FHH | Uncommon Files |
| .FHI | Uncommon Files |
| .FHIS | Uncommon Files |
| .FHJ | Uncommon Files |
| .FHK | Uncommon Files |
| .FHL | Uncommon Files |
| .FHM | Uncommon Files |
| .FHN | Uncommon Files |
| .FHO | Uncommon Files |
| .FHP | Uncommon Files |
| .FHQ | Uncommon Files |
| .FHR | Uncommon Files |
| .FHS | Uncommon Files |
| .FHT | Uncommon Files |
| .FHTML | Uncommon Files |
| .FHU | Uncommon Files |
| .FHV | Uncommon Files |
| .FHW | Uncommon Files |
| .FHX | Uncommon Files |
| .FHY | Uncommon Files |
| .FHZ | Uncommon Files |
| .FI | Uncommon Files |
| .FI0 | Uncommon Files |
| .FI1 | Uncommon Files |
| .FI2 | Uncommon Files |
| .FI3 | Uncommon Files |
| .FI4 | Uncommon Files |
| .FI5 | Uncommon Files |
| .FI6 | Uncommon Files |
| .FI7 | Uncommon Files |
| .FI8 | Uncommon Files |
| .FI9 | Uncommon Files |
| .FIA | Uncommon Files |
| .FIB | Uncommon Files |
| .FICONS | Uncommon Files |
| .FIDDLE | Uncommon Files |
| .FIDO | Uncommon Files |
| .FIDX | Uncommon Files |
| .FIE | Uncommon Files |
| .FIFF | Uncommon Files |
| .FIGHT | Uncommon Files |
| .FIGURE | Uncommon Files |
| .FIH | Uncommon Files |
| .FII | Uncommon Files |
| .FIJ | Uncommon Files |
| .FIK | Uncommon Files |
| .FILEKILL | Uncommon Files |
| .FILEPLANET | Uncommon Files |
| .FILES | Uncommon Files |
| .FILM | Uncommon Files |
| .FILMAO | Uncommon Files |
| .FILTER | Uncommon Files |
| .FIM | Uncommon Files |
| .FIN | Uncommon Files |
| .FINAL | Uncommon Files |
| .FIND | Uncommon Files |
| .FINDER | Uncommon Files |
| .FIO | Uncommon Files |
| .FIP | Uncommon Files |
| .FIQ | Uncommon Files |
| .FIR | Uncommon Files |
| .FIRE | Uncommon Files |
| .FIRESTORMF | Uncommon Files |
| .FIRMWARE | Uncommon Files |
| .FIRST | Uncommon Files |
| .FIS | Uncommon Files |
| Extension | File Description |
| .FISH | Uncommon Files |
| .FISHES | Uncommon Files |
| .FISHTANK | Uncommon Files |
| .FIU | Uncommon Files |
| .FIV | Uncommon Files |
| .FIVE | Uncommon Files |
| .FIW | Uncommon Files |
| .FIX | Uncommon Files |
| .FIXED | Uncommon Files |
| .FIXER | Uncommon Files |
| .FIXES | Uncommon Files |
| .FIXKERN | Uncommon Files |
| .FIY | Uncommon Files |
| .FIZ | Uncommon Files |
| .FJ0 | Uncommon Files |
| .FJ1 | Uncommon Files |
| .FJ2 | Uncommon Files |
| .FJ3 | Uncommon Files |
| .FJ4 | Uncommon Files |
| .FJ5 | Uncommon Files |
| .FJ6 | Uncommon Files |
| .FJ7 | Uncommon Files |
| .FJ8 | Uncommon Files |
| .FJ9 | Uncommon Files |
| .FJA | Uncommon Files |
| .FJB | Uncommon Files |
| .FJC | Uncommon Files |
| .FJD | Uncommon Files |
| .FJE | Uncommon Files |
| .FJF | Uncommon Files |
| .FJG | Uncommon Files |
| .FJH | Uncommon Files |
| .FJI | Uncommon Files |
| .FJJ | Uncommon Files |
| .FJK | Uncommon Files |
| .FJL | Uncommon Files |
| .FJM | Uncommon Files |
| .FJN | Uncommon Files |
| .FJO | Uncommon Files |
| .FJP | Uncommon Files |
| .FJQ | Uncommon Files |
| .FJR | Uncommon Files |
| .FJS | Uncommon Files |
| .FJSW | Uncommon Files |
| .FJT | Uncommon Files |
| .FJU | Uncommon Files |
| .FJV | Uncommon Files |
| .FJW | Uncommon Files |
| .FJX | Uncommon Files |
| .FJY | Uncommon Files |
| .FJZ | Uncommon Files |
| .FK | Uncommon Files |
| .FK0 | Uncommon Files |
| .FK1 | Uncommon Files |
| .FK2 | Uncommon Files |
| .FK3 | Uncommon Files |
| .FK4 | Uncommon Files |
| .FK5 | Uncommon Files |
| .FK6 | Uncommon Files |
| .FK7 | Uncommon Files |
| .FK8 | Uncommon Files |
| .FK9 | Uncommon Files |
| .FKA | Uncommon Files |
| .FKB | Uncommon Files |
| .FKC | Uncommon Files |
| .FKD | Uncommon Files |
| .FKE | Uncommon Files |
| .FKF | Uncommon Files |
| .FKG | Uncommon Files |
| .FKH | Uncommon Files |
| .FKI | Uncommon Files |
| .FKJ | Uncommon Files |
| .FKK | Uncommon Files |
| .FKL | Uncommon Files |
| .FKM | Uncommon Files |
