| flf | Navision Financials License Data |
| flg | MicroSim PCBoard Log Data |
| flg | Puppy Linux Partition Flag |
| fli | Autodesk Animator Mask Data |
| flib | Foxit Reader Library |
| flic | Autodesk Animator Mask Data |
| flinstaller | FL Studio Installer Data |
| flipchart | ActivInspire Flipchart |
| flk | AccountEdge Company Lock Data |
| flk | Folder Lock Data |
| flka | Folder Lock FAT32 Portable Locker File |
| flkb | Folder Lock NTFS Portable Locker File |
| flkey | Fruity Loops Studio License Key |
| fll | Micrografx Designer Fill Pattern Data |
| fll | TextPipe Pro Filter Data |
| flm | Autodesk AutoCAD Film Roll Data |
| flm | CyberLink MediaShow Data |
| fln | XMap Flight Plan Data |
| flo | Automate Flowchart Data |
| flo | LightCycler v3 Experiment Data |
| flo | RFFlow Flowchart Data |
| flo | WRAP Inflow IN Records Data |
| float | ARIA Server Float Data |
| floor | Structural Concrete Software Floor Data |
| flow | Microsoft Expression SketchFlow Data |
| flowmaplibrary | Corel Painter Flowmap Library |
| flp | ActivInspire Flipchart |
| flp | FlipAlbum Data |
| flp | Fractal Explorer Landscape Project |
| flr | WinFlash Results File |
| fls | Creator Fault List File |
| fls | Stock Prospector Exported Data |
| fls | WinFlash Flashcard Source |
| flt | Carlson 2016 Triangulated Irregular Network Data |
| flt | Micrografx Picture Publisher Filter |
