| eys | Sierra Expanded Embroidery Format Document |
| ez | EZ Word Document |
| ezdraw | EazyDraw Drawing |
| ezf | Calculus EZ-Fax Fax Document |
| ezpx | GoLabel Label Document |
| ezs | Sunburst Easy Sheet Document |
| ezt | Sunburst Easy Sheet Template |
| ezw | easyOFFER Real Estate Form |
| f2d | Autodesk Fusion 360 2D Drawing |
| f3d | Autodesk Fusion 360 3D Design |
| fab | Fab@Home Fabber Model |
| fact | ElectricImage 3D File |
| fadein | Fade In Document |
| faff | Professional Calc Spreadsheet Document |
| faq | Frequently Asked Questions Text |
| fax | WinFax Document |
| fbd | FlowBiz Workflow Designer Procedure Document |
| fbk | Autodesk AutoCAD Civil 3D Field Book |
| fbm | FREE!ship Ship Model |
| fbok | Adobe FrameMaker Book |
| fbs | FastBid Plan Sheet |
| fbx | Autodesk FBX Document |
| fc5 | Patton & Patton Flow Charting 5 Document |
| fc7 | FastCAD v7 Drawing |
| fcd | FastCAD for DOS Drawing |
| Patton & Patton Flow Charting 3 Document |
| fcdt | FormsCentral Design Template |
| fcf | Final Draft File Converter |
| fcs | PFS First Choice Spreadsheet |
| fcstd | FreeCAD Standard Document |
| fcstd1 | FreeCAD Document Backup |
| fcw | FastCAD for Windows Drawing |
| fd | Final Draft Document |
| fd2 | Epson PictureMate Borders |
| fdd | FormDocs Document |
| fdf | Adobe Acrobat Form Data Format Document |
| fdr | Final Draft Document |
| fds | Final Draft Secure Copy |
| fdseq | Microsoft XPS Fixed Document Sequence |
| fdt | Final Draft Template |
| FormDocs Template |
| fdw | FEBDOK Document |
| fdx | Final Draft v8 Document |
| fdxt | Final Draft v8 Template |
| fed | FormEdik Form Data |
| feg | Art Explosion Greeting Card Factory E-Card |
| fem | RADIOSS Document |
| fey | FCS Express Layout Document |
| ff6 | RISC OS Encapsulated PostScript |
| ffo | Adobe Photoshop File Info |
| ffs | FME Feature Store |
| fft | IBM DisplayWrite Final Form Text |
| ffwp | FormsForWeb Filler Formula Data |
| fg3 | FX Graph 3 Document |
| fg5 | OASYS GraphPro Document |
| fgc | Greeting Card Factory Card |
| fhe | Singer Futura Embroidery Design |
| fig | DeskMate Drawing Document |
| Xfig Document |
| filt | 4D Database for Mac ASCII Table Data |
| fin | Sapir Torah Text |
| fj3 | Lotus 1-2-3 Worksheet |
| fkt | KmPlot Document |
| flag | FlagMaker Document |
| flo | iGrafx FlowCharter Document |
| flowchart | PureFlow Flowchart |
| flp | Family Lawyer Document |
| flw | Kivio Flowchart Document |
| Lotus Freelance Graphics Flowchart Data |
| flx | FelixCAD Drawing |
| MicroSurvey CAD Drawing |
| fly | GNU Lilypond Document |
| fm | Adobe FrameMaker Document |
| FeatureCAM Document |
| fm1 | Lotus 1-2-3 V2 Spreadsheet |
| fm2 | Lotus 1-2-3 Worksheet Formatting Data |
| fm3 | Lotus 1-2-3 Worksheet Formatting Data |
| fmc | COBUS NCAD Document |
| fmd | MotionArtist Document |
| fms | Lotus Freelance Graphics Data |
