| fwl | InCenter Raw Firewall Log |
| fwlic | FlexiWrite License Data |
| fwn | FreeWave Network Data |
| fwp | FLAMES Windows Viewer Project |
| fwpkg | HP ILO Firmware Package |
| fwr | Faceware Analyzer Tracking Data |
| fws | FileWrangler Data |
| fwt | FTS Network Design Data |
| fx | FastLynx Online Guide |
| ReadyBoot Trace Data |
| fxb | Cubase FX Bank |
| fxf | BigFix Action Data |
| IBM Endpoint Manager Action |
| fxi | Casio fx-9860G Interface Format Data |
| fxm | BigFix Fixlet Pool Data |
| messiahStudio Motion Data |
| fxn | Fast XML Notation Data |
| fxp | Bentley InRoads Survey Preferences Data |
| Cubase FX Program |
| fxpack | MXwendler Packed Shader Data |
| fxr | Oracle Documaker Font Cross-Reference Data |
| fxs | messiahStudio Scene Data |
| fxt | FaceFX Actor Template |
| MakeMusic Finale Script |
| fxtc | Adobe After Effects FXTC Data |
| fxv | SPSD/M FXV Data |
| fxw | eSignal FXW Data |
| fxye | GSAS Data |
| fyc | eSignal FYC Data |
| fyi | Concordance FYI Server Data |
| FLOWCAL Desktop Data |
| fyz | Motorola Droid Bionic Firmware |
| fz2 | JB BAHN Zoom2 Graphics |
| fz4 | JB BAHN Zoom4 Graphics |
| fza | Fattz Announcement Header |
| Form Z Autosave File |
| fzb | Form Z Backup File |
| Fritzing Binary |
| fzbz | Fritzing Bundled Binary |
| fzf | FontZip Font Packer Data |
| fzh | Form Z Help Index |
| fzm | Fritzing Module |
| fzn | FlatZinc Modelling Language Data |
| fzp | Fargo Primera Dye Sub Support Data |
| Form Z Plug-in |
| Fritzing Custom Part |
| fzpz | Fritzing Bundled Part |
| fzy | LexisNexis Concordance Fuzzy Data |
| g | Gravity News Database |
| g-code | G-code Code |
| g01 | HEC-RAS Geometry File |
| MicroSim PCBoard Photoplot Artwork Data |
| g02 | HEC-RAS Geometry File |
| g03 | HEC-RAS Geometry File |
| MicroSim PCBoard Photoplot Artwork Data |
| g04 | HEC-RAS Geometry File |
| g05 | HEC-RAS Geometry File |
| g06 | HEC-RAS Geometry File |
| g07 | HEC-RAS Geometry File |
| g08 | HEC-RAS Geometry File |
| g09 | HEC-RAS Geometry File |
| g1 | Gerber Inner Routing Layer 1 Data |
| g10 | HEC-RAS Geometry File |
| MicroSim PCBoard Photoplot Artwork Data |
| g12 | CAMtastic Mid Layer Gerber Data |
| g13 | CAMtastic Mid Layer Gerber Data |
| g14 | CAMtastic Mid Layer Gerber Data |
| g15 | CAMtastic Mid Layer Gerber Data |
| g1a | Casio fx-9860G Add-in |
| g1e | Casio Prizm eActivity File |
| g1k | Casio Prizm Manager PLUS Key Log |
| g1l | Casio fx-9860G Data |
| g1m | Casio Prizm Main Memory Data |
| g1n | Casio fx-9860G Storage Data |
| g1r | Casio Prizm Main Memory Data |
| g1s | Casio fx-9860G Flash System Image |
| g2 | Gerber Inner Routing Layer 1 Data |
| g2a | GoToAssist Recording Data |
| g2e | Casio Prizm eActivity File |
| g2g | Star Formation KITP 2007 Data |
