| Extension | File Description |
| .F83 | Uncommon Files |
| .F84 | Uncommon Files |
| .F85 | Uncommon Files |
| .F86 | Uncommon Files |
| .F87 | Uncommon Files |
| .F88 | Uncommon Files |
| .F89 | Uncommon Files |
| .F8A | Uncommon Files |
| .F8B | Uncommon Files |
| .F8C | Uncommon Files |
| .F8D | Uncommon Files |
| .F8E | Uncommon Files |
| .F8F | Uncommon Files |
| .F8G | Uncommon Files |
| .F8H | Uncommon Files |
| .F8I | Uncommon Files |
| .F8J | Uncommon Files |
| .F8K | Uncommon Files |
| .F8L | Uncommon Files |
| .F8M | Uncommon Files |
| .F8N | Uncommon Files |
| .F8O | Uncommon Files |
| .F8P | Uncommon Files |
| .F8Q | Uncommon Files |
| .F8R | Uncommon Files |
| .F8S | Uncommon Files |
| .F8T | Uncommon Files |
| .F8U | Uncommon Files |
| .F8V | Uncommon Files |
| .F8W | Uncommon Files |
| .F8X | Uncommon Files |
| .F8Y | Uncommon Files |
| .F8Z | Uncommon Files |
| .F90 | Developer Files |
| .F91 | Uncommon Files |
| .F92 | Uncommon Files |
| .F93 | Uncommon Files |
| .F94 | Uncommon Files |
| .F95 | Uncommon Files |
| .F96 | Uncommon Files |
| .F97 | Uncommon Files |
| .F98 | Uncommon Files |
| .F99 | Uncommon Files |
| .F9A | Uncommon Files |
| .F9B | Uncommon Files |
| .F9C | Uncommon Files |
| .F9D | Uncommon Files |
| .F9E | Uncommon Files |
| .F9F | Uncommon Files |
| .F9G | Uncommon Files |
| .F9H | Uncommon Files |
| .F9I | Uncommon Files |
| .F9J | Uncommon Files |
| .F9K | Uncommon Files |
| .F9L | Uncommon Files |
| .F9M | Uncommon Files |
| .F9N | Uncommon Files |
| .F9O | Uncommon Files |
| .F9P | Uncommon Files |
| .F9Q | Uncommon Files |
| .F9R | Uncommon Files |
| .F9S | Uncommon Files |
| .F9T | Uncommon Files |
| .F9U | Uncommon Files |
| .F9V | Uncommon Files |
| .F9W | Uncommon Files |
| .F9X | Uncommon Files |
| .F9Y | Uncommon Files |
| .F9Z | Uncommon Files |
| .FA | Data Files |
| .FA0 | Uncommon Files |
| .FA1 | Uncommon Files |
| .FA2 | Uncommon Files |
| .FA3 | Uncommon Files |
| .FA4 | Uncommon Files |
| Extension | File Description |
| .FA5 | Uncommon Files |
| .FA6 | Uncommon Files |
| .FA7 | Uncommon Files |
| .FA8 | Uncommon Files |
| .FA9 | Uncommon Files |
| .FAA | Uncommon Files |
| .FAB | Uncommon Files |
| .FABLES | Uncommon Files |
| .FAC | Raster Image Files |
| .FACE | Raster Image Files |
| .FACET | Uncommon Files |
| .FACT | Uncommon Files |
| .FACTOR | Uncommon Files |
| .FACTSHEET | Uncommon Files |
| .FAD | Uncommon Files |
| .FADE | Uncommon Files |
| .FADEIN | Uncommon Files |
| .FADEOUT | Uncommon Files |
| .FAE | Uncommon Files |
| .FAF | Uncommon Files |
| .FAG | Uncommon Files |
| .FAH | Uncommon Files |
| .FAI | Uncommon Files |
| .FAITH2 | Uncommon Files |
| .FAJ | Uncommon Files |
| .FAK | Uncommon Files |
| .FAKRACK | Uncommon Files |
| .FAKRACK2 | Uncommon Files |
| .FAL | Uncommon Files |
| .FALLING | Uncommon Files |
| .FAM | Uncommon Files |
| .FAME | Uncommon Files |
| .FAN | CAD Files |
| .FAO | Uncommon Files |
| .FAP | Uncommon Files |
| .FAQ | Text Files |
| .FAQ-SPEEDU | Uncommon Files |
| .FAQT | Uncommon Files |
| .FAR | Game Files |
| .FARGOLASE | Uncommon Files |
| .fas | Uncommon Files |
| .FAST | Uncommon Files |
| .FASTA | Data Files |
| .FASTER | Uncommon Files |
| .FAT | Settings Files |
| .FATESAVEDG | Uncommon Files |
| .FAU | Uncommon Files |
| .FAV | Uncommon Files |
| .FAW | Uncommon Files |
| .FAX | Raster Image Files |
| .FAY | Uncommon Files |
| .FAZ | Uncommon Files |
| .FB | Uncommon Files |
| .FB! | Misc Files |
| .FB0 | Uncommon Files |
| .FB1 | Uncommon Files |
| .FB2 | Text Files |
| .FB3 | Uncommon Files |
| .FB4 | Uncommon Files |
| .FB5 | Uncommon Files |
| .FB6 | Uncommon Files |
| .FB7 | Uncommon Files |
| .FB8 | Uncommon Files |
| .FB9 | Uncommon Files |
| .FBA | Uncommon Files |
| .FBAP | Uncommon Files |
| .FBB | Uncommon Files |
| .FBC | Backup Files |
| .FBD | Uncommon Files |
| .FBDOC | Data Files |
| .FBDZONES | Uncommon Files |
| .FBE | Uncommon Files |
| .FBEXPLORE | Uncommon Files |
| .FBF | Backup Files |
| .FBFILESET | Uncommon Files |
