| .EPDF | ImageMagick Studio LLC | Graafiset Tiedostot | Encapsulated Portable Document Format | ImageMagick | ImageMagick Studio LLC |
| .EPSI | Adobe Systems Incorporated | Graafiset Tiedostot | Adobe Encapsulated PostScript Interchange Format | Adobe Photoshop | Adobe Systems Incorporated |
| .ERM | Insoft Oy | Graafiset Tiedostot | Prosa Entity Relationship Diagram Model | Prosa UML Modeller | Insoft Oy |
| .ES | Interscape | Graafiset Tiedostot | ECHOSPEECH File | ECHOSPEECH | Interscape |
| .EVA | Unknown Developer | Graafiset Tiedostot | Viz Modeler 3D Scene Archive File | Unknown Software | Unknown Developer |
| .EX3 | Harvard Graphics | Graafiset Tiedostot | Harvard Graphics Device Driver File | Harvard Graphics ChartXL | Harvard Graphics |
| .EYA | ESRI China (Beijing) | Graafiset Tiedostot | eYaViewer Graphics File | Unknown Software | Unknown Developer |
| .EYE | EyeMail Technology Inc. | Graafiset Tiedostot | Eyemail Video Recording File | ETI Monet TV | EyeMail Technology Inc. |
| .F3LA | Corel | Graafiset Tiedostot | Corel Texture File | Unknown Software | Unknown Developer |
| .FAC | Newera Software Technology, Inc. | Graafiset Tiedostot | FACE Graphic File | Graphics Converter Pro | Newera Software Technology, Inc. |
| .FIG | Open Source | Graafiset Tiedostot | Xfig Drawing | Winfig | Andreas Schmidt |
| .FIS | 3AM Solutions | Graafiset Tiedostot | Dynamite VSP Feature Interpretation Style | Dynamite VSP | 3AM Solutions |
| .FIX | Corey Zeke Womack (Torrunt) | Graafiset Tiedostot | Vimage Image File | Vimage | Corey Zeke Womack (Torrunt) |
| .FIZ | National Radio Astronomy Observatory (NRAO) | Graafiset Tiedostot | FITS Graphics Data | FITSview | National Radio Astronomy Observatory (NRAO) |
| .FLAG | Interscape | Graafiset Tiedostot | FlagMaker Document | FlagMaker | Interscape |
| .FLC | Autodesk, Inc. | Graafiset Tiedostot | FLIC Animation | Apple QuickTime Player | Apple |
| .FLX | Autodesk, Inc. | Graafiset Tiedostot | FLIC Animation | Apple QuickTime Player | Apple |
| .FMC | Interscape | Graafiset Tiedostot | FormConnect Form File | FormConnect | Interscape |
| .FMF | Data Techniques Inc. | Graafiset Tiedostot | Fax Man Document | FaxMan Jr | Data Techniques Inc. |
| .FMP | Dreamingsoft | Graafiset Tiedostot | 123 Flash Menu Project | 123 Flash Menu | Dreamingsoft |
| .FMV | Safe Software | Graafiset Tiedostot | FME Desktop Viewspace File | FME Desktop | Safe Software |
| .FRA | Electronic Arts | Graafiset Tiedostot | FIFA World Cup Game Data | FIFA World Cup | Electronic Arts |
| .FRAME | Adobe Systems Incorporated | Graafiset Tiedostot | Adobe FrameMaker Interchange Format | Adobe FrameMaker | Adobe Systems Incorporated |
| .FRP | Delrina | Graafiset Tiedostot | PerForm Or FormFlow Form File Format | PerForm | Delrina |
| .FRS | Corel | Graafiset Tiedostot | Corel WordPerfect Screen Font Resource File | Corel WordPerfect | Corel |
| .FXD | Microsoft Corporation | Graafiset Tiedostot | FoxPro FoxDoc Support Data | Microsoft Visual FoxPro | Microsoft Corporation |
| .G09 | Atari Corporation | Graafiset Tiedostot | Atari Picture Image File | Recoil | Piotr Fusik |
| .G3F | EquiSys | Graafiset Tiedostot | Zetafax Fax | ZetaFax | EquiSys |
| .G3N | XnSoft | Graafiset Tiedostot | Imaging Fax Image | XnView MP | XnSoft |
| .G4 | Microsoft Corporation | Graafiset Tiedostot | Microsoft Access Image Format | Microsoft Access | Microsoft Corporation |
| .G8 | Cubicomp | Graafiset Tiedostot | Cubicomp PictureMaker Green Channel Image Data File | Cubicomp PictureMaker | Cubicomp |
| .GBR | Gerber Technology | Graafiset Tiedostot | Gerber Format File | Altium Designer | Altium |
| .GD2 | Boutell | Graafiset Tiedostot | GD Library 2 Image File | GD Library | Boutell |
| .GDF | Eytan Adar | Graafiset Tiedostot | GUESS Graph Data Format File | GUESS | Eytan Adar |
| .GEO | Redway3d and others | Graafiset Tiedostot | VRML Geography File | TurboCAD | IMSI/Design, LLC |
| .GG | Google | Graafiset Tiedostot | Google Desktop Gadget File | Google Desktop | Google |
| .GGP | Dassault Systèmes | Graafiset Tiedostot | GemCom Graphic Format File | GEOVIA | Dassault Systèmes |
| .GHT | Symantec Corporation | Graafiset Tiedostot | Norton Ghost Project | Norton Ghost | Symantec Corporation |
| .GMP | Blue Marble Geographics | Graafiset Tiedostot | Global Mapper Package File | Global Mapper | Blue Marble Geographics |
| .GNV | DNASTAR | Graafiset Tiedostot | GenVision Project | GenVision | DNASTAR |
| .GP3 | Arobas Music | Graafiset Tiedostot | Guitar Pro 3 File | Music Guitar Pro | Arobas Music |
| .GPH | StataCorp | Graafiset Tiedostot | Stata Graph Data | Stata | StataCorp |
| .GPP | Open Source | Graafiset Tiedostot | Guitar Practiced Perfectly 2 Data File | Guitar Practiced Perfectly version 2 | Open Source |
| .GQF | Pedagoguery Software Inc | Graafiset Tiedostot | GrafEq Data File | GrafEq | Pedagoguery Software Inc |
| .GQS | Pedagoguery Software Inc | Graafiset Tiedostot | GrafEq Data File | GrafEq | Pedagoguery Software Inc |
| .GRA | Microsoft Corporation | Graafiset Tiedostot | Microsoft Graph File | Microsoft Excel | Microsoft Corporation |
| .GRG | GreatProgs | Graafiset Tiedostot | GreatFamily Graphic Gallery | GreatFamily | GreatProgs |
| .GRQ | Barco Graphics | Graafiset Tiedostot | Quickstep Barco Graphics File | Unknown Software | Unknown Developer |
| .GX1 | Unknown Developer | Graafiset Tiedostot | Show Partner Graphics File | Unknown Software | Unknown Developer |
| .HCG | HCSoft Programación | Graafiset Tiedostot | HClab Chart File | HCLab | HCSoft Programación |
| .HDW | Harvard Graphics | Graafiset Tiedostot | Harvard Graphics Graphic File | Harvard Graphics ChartXL | Harvard Graphics |
| .HED | XnSoft | Graafiset Tiedostot | Hi-Eddi Image File | Unknown Software | Unknown Developer |
| .HFT | Matthew Bender | Graafiset Tiedostot | HotDocs Form Template | HotDocs | Matthew Bender |
| .HGS | Harvard Graphics | Graafiset Tiedostot | Harvard Graphics Graphic File | Harvard Graphics ChartXL | Harvard Graphics |
| .HLI | TDK Corporation | Graafiset Tiedostot | MOJO 620 Logo File | MOJO 620 Logo | TDK Corporation |
| .HR | Atari Corporation | Graafiset Tiedostot | Atari Picture Image File | Recoil | Piotr Fusik |
| .HRZ | Unknown Developer | Graafiset Tiedostot | Slow Scan TeleVision File (SSTV) | XnView MP | XnSoft |
| .IBM | Commodore International | Graafiset Tiedostot | Commodore Amiga Graphics Data | Ability Office | Ability Plus Software |
| .ICC | Corel | Graafiset Tiedostot | International Color Consortium Profile File | Adobe Photoshop CC | Adobe Systems Incorporated |
| .IDR | Mediachance | Graafiset Tiedostot | CompactDraw Project | CompactDraw | Mediachance |
| .IIM | Ipswitch, Inc. | Graafiset Tiedostot | iMacro Macro File | Mozilla Firefox | Mozilla |
| .IKO | Microsoft Corporation | Graafiset Tiedostot | Windows Icon Resource File | ICON resource | Microsoft Corporation |
| .ILM | Commodore International | Graafiset Tiedostot | Amiga IFF Image | Amiga Forever | Cloanto Corporation |
| .IM7 | LaVision | Graafiset Tiedostot | DaVis Graphics File | DaVis | LaVision |
| .IMA | Sage | Graafiset Tiedostot | Sage ACT! Email Message | Act! | Swiftpage, Inc. |
| .IME | Microsoft Corporation | Graafiset Tiedostot | Windows Input Method Editor File | Microsoft Windows | Microsoft Corporation |
| .IMI | Embarcadero Technologies | Graafiset Tiedostot | Turbo Pascal DOS File | Turbo Pascal | Embarcadero Technologies |
| .IMR | IBM | Graafiset Tiedostot | Impromptu Report File | IBM Cognos Impromptu | Symitar |
| .INP | Concept Software | Graafiset Tiedostot | Urdu InPage Document | Urdu InPage | Concept Software |
| .INST | Interscape | Graafiset Tiedostot | RMCProfile Peak Profile Data | RMCProfile | Interscape |
| .IPC | IncrediTools | Graafiset Tiedostot | IncrediFlash Tools Image File | IncrediFlash | IncrediTools |
| .IPH | XnSoft | Graafiset Tiedostot | InterPaint (Hires) Image Format | XnView MP | XnSoft |
| .IPM | Walmart | Graafiset Tiedostot | Internet Photo Message File | Walmart Digital Photo Manager | Walmart |
| .IPW | Uniplot Software | Graafiset Tiedostot | UniPlot Graph File | UniPlot | Uniplot Software |
| .IPZ | Mail.Ru | Graafiset Tiedostot | ICQ | ICQ | Mail.Ru |
| .IWC | Felipe Sánchez | Graafiset Tiedostot | Installwatch Database File | InstallWatch | Felipe Sánchez |
| .JASC | Corel | Graafiset Tiedostot | JAS Compressed Graphic | PaintShop Pro | Corel |
| .JFF | Freedom Scientific | Graafiset Tiedostot | JAWS INI Data | JAWS | Freedom Scientific |
| .JJ | Pierre-Emmanuel Gougelet | Graafiset Tiedostot | Doodle C64 Compressed Image Format | XnView MP | XnSoft |
| .JPK | JPK Instruments | Graafiset Tiedostot | JPK Instruments File Format | Unknown Software | Unknown Developer |
| .JPM | Irfan Skiljan | Graafiset Tiedostot | JPEG 2000 Multi-layer Image Format (ISO 15444-6) | IrfanView | Open Source |
| .KFT | FMJ-Software | Graafiset Tiedostot | Korg T-series Wave Data | Awave Studio | FMJ-Software |
| .KMG | Sega | Graafiset Tiedostot | Sega Dreamcast Uncompressed Image | Dreamcast | Sega |
| .KNK | Accugraphic Sales, Inc. / KNK | Graafiset Tiedostot | KNK Studio Cutting Document | KNK Studio (Klic-N-Kut) | Accugraphic Sales, Inc. / KNK |
| .KOM | KingMill Enterprises | Graafiset Tiedostot | Kit-O-Mat 3D Model File | Kit-O-Mat | KingMill Enterprises |
| .KPT | Open Source | Graafiset Tiedostot | KPresenter Template File | KOffice | Open Source |
| .KRA | Open Source | Graafiset Tiedostot | Krita Image | Krita | Open Source |
| .KRS | GEUS Ware SRO | Graafiset Tiedostot | GEUS Drawing | GEUS | GEUS Ware SRO |
| .KSS | FabTrol Systems | Graafiset Tiedostot | FabTrol MRP Template | FabTrol | FabTrol Systems |
| .KTR | Keymark Enterprises | Graafiset Tiedostot | KeyTruss Truss File | KeyTruss Design and Estimating Software | Keymark Enterprises |
| .KZM | Image Ink India PVT. LTD | Graafiset Tiedostot | Karizma Design Smart | Karizma Design Smart | Image Ink India PVT. LTD |
| .KZX | Solid Iris Technologies | Graafiset Tiedostot | Kerkythea Material Data | Kerkythea | Solid Iris Technologies |
| .LAD | Daylon Graphics | Graafiset Tiedostot | Daylon Leveller Animation Data | Daylon Leveller | Daylon Graphics |
| .LBL | Interscape | Graafiset Tiedostot | Now Contact Label Template | Now Up-to-Date (Now Contact) | Now Software |
| .LDA | Pierre-Emmanuel Gougelet | Graafiset Tiedostot | LaserData Image Format File | XnView MP | XnSoft |
| .LJ | Hewlett-Packard | Graafiset Tiedostot | HP LaserJet Graphic | HP LaserJet Driver | Hewlett-Packard |
| .LP3 | Piotr Fusik | Graafiset Tiedostot | Logo Painter 3/3+ Picture Image | Recoil | Piotr Fusik |
| .LSM | Carl Zeiss | Graafiset Tiedostot | Ziess LSM Microscope Image | LSM Image Browser | Carl Zeiss |
| .LVD | MP Filtri | Graafiset Tiedostot | LPA-View | LPA View | MP Filtri |
| .LVP | Avaya | Graafiset Tiedostot | Avaya Voice Player Audio File | Avaya Voice Player | Avaya |
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