I File Extensions

File Extension File Type Popularity
.I Visual Studio Intermediate File 4.6
.I INTERCAL Source File 4.2
.I00 DVD Shrink Part 1 File 3.9
.I01 DVD Shrink Part 2 File 4.5
.I02 DVD Shrink Part 3 File 4.5
.I3D Houdini Image 3D File 4.5
.I3PACK Point Blank Game Data File 4.7
.I5Z IUCLID 5 Import/Export File 4.8
.IAA INTUS Audio Archive 3.5
.IADACTION iAd Producer Plugin Action Template 3.5
.IADCLASS iAd Producer Plugin Class Description File 3.5
.IADCOMPONENT iAd Producer Plugin Component File 3.5
.IADPAGE iAd Producer Plugin Page Template 3.5
.IADPLUG iAd Producer Plugin 3.5
.IADPROJ iAd Producer Project 3.6
.IADSTYLE iAd Producer Plugin Style Template 3.5
.IAF Outlook Internet Account File 3.6
.IAM Inventor Assembly File 3.6
.IAS Intermodulation Analysis System File 3.5
.IB InterBase Database 4.2
.IB2 IncrediBots 2 Saved Challenge File 3
.IB3 IncrediBots 3 Saved Challenge File 3
.IBA Lectra Clothing Design Pieces File 4.7
.IBA iBooks Author Document 4.2
.IBATEMPLATE iBooks Author Document Template 4
.IBB ImgBurn Project File 4
.IBCD InstantBingoCard Document 4
.IBCH IncrediBots Challenge File 3.5
.IBK IncrediMail Account Backup File 4.2
.IBOOKS Multi-Touch iBook 4.3
.IBP IsoBuster Managed Image Information File 4
.IBPLUGIN Interface Builder Plug-in 4
.IBQ IsoBuster Managed Image File 4.2
.IBRE IncrediBots Replay File 3.8
.IBRO IncrediBots Robot File 4
.IBT Texture and Model File 4.5
.IC1 Low Resolution Imagic Graphics File 3
.IC2 Medium Resolution Imagic Graphics File 3
.IC3 High Resolution Imagic Graphics File 3
.IC3D IC3D Scene File 3.8
.ICA Citrix ICA File 4.2
.ICA Image Object Content Architecture File 4.2
.ICAL iCalendar File 3.5
.ICALENDAR iCalendar File 3.5
.ICALEVENT iCal Event File 3.5
.ICALTODO iCal To Do File 3.5
.ICAP InCopy Package File 4
.ICB Targa ICB Bitmap Image 3
.ICBU Calendar Backup File 4
.ICC ICC Profile 3.8
.ICD Installable Client Driver File 4.8
.ICD SafeDisc Encrypted Program 4.7
.ICD IronCAD 3D Drawing File 3.8
.ICE ICE File Archive 4
.ICF Zoom Router Configuration File 3.5
.ICG Image Comparer Gallery File 4
.ICHAT iChat Saved Chat Log 3.5
.ICL Windows Icon Library File 4
.ICM Image Color Matching Profile 4.5
.ICMA InCopy Assignment File 4.2
.ICML InCopy Document 3.3
.ICMT InCopy Template 4
.ICN Windows Icon File 4.4
.ICNS Mac OS X Icon Resource File 4.7
.ICO Icon File 4.5
.ICON Icon Image File 3.5
.ICONPACKAGE IconPackager Theme File 4.7
.ICONSET Mac OS X Icon Set Folder 4.5
.ICONTAINER CandyBar iContainer File 4
.ICPR IconUtils Project File 3.5
.ICR Image Comparer Results File 4
.ICS Calendar File 4.2
.ICS IC Recorder Sound File 3.9
.ICS IronCAD 3D Drawing File 3.6
.ICST InCopy Document Preset File 4
.ICURSORFX iCursor Effect File 4
.ID Lotus Notes User ID File 4.6
.ID2 Windows Live Messenger Emoticon File 4.2
.IDAP Adobe InDesign Assignment Package 4
.IDB Visual Studio Intermediate Debug File 4.2
.IDB IDA Database File 4.2
.IDC Internet Database Connector File 4.5
.IDDX Static Default File 3
.IDE Inventor iFeature File 4.5
.IDE GTA Item Definition File 4.5
.IDEA Tresor IDEA Encrypted File 4
.IDEA Adobe Ideas Document 4
.IDEPLUGIN Xcode IDE Plug-in 3.8
.IDF MIDI Instrument Definition File 3.8
.IDI EVA Controller Event Log 3.5
.IDL Interface Definition Language File 4
.IDLK Adobe InDesign Lock File 4.2
.IDML Adobe InDesign Markup Language File 4.2
.IDMS Adobe InDesign Snippet 4.2
.IDPK Adobe InDesign Package for GoLive File 3.5
.IDPP Adobe InDesign Preflight Profile 4.2
.IDT Windows Installer Database Text Archive File 4.5
.IDV Inventor Design View File 4
.IDW Inventor Drawing 4.2
.IDX Movie Subtitle File 4.4
.IDX Navigation POI File 4.2
.IDX HMI Historical Log Index File 4.2
.IDX Index File 4.2
.IDX Outlook Express Mailbox Index File 3.7
.IDX0 Runescape Cache Index File 4
.IDX255 Runescape Cache File 4
.IES IES Photometric Data File 4
.IF Procedimientos-Uno IFWin Project File 4.3
.IFAITH iFaith SHSH File 3.5
.IFC Industry Foundation Classes File 4.3
.IFCXML Industry Foundation Classes XML File 3.5
.IFCZIP Compessed IFC File 3.5
.IFD InForm Document 4.5
.IFF Interchange File Format 4.3
.IFICTION iFiction Metadata File 3.5
.IFL 3ds Max Image File List 4.5
.IFO DVD-Video Disc Information File 4.3
.IFP GTA Animation File 4.5
.IFS InfoSlips Package 3.8
.IFW INTUS Firmware File 3.8
.IGC Anime List Builder Input File 4
.IGES IGES File 3.5
.IGG SuiteProfiler Color Map File 4.5
.IGI Indigo Image File 3.5
.IGM Indigo Renderer Material File 4
.IGMA INTUS Graph Mask Archive 3.5
.IGN RoboHelp Ignore List File 3.5
.IGP Igor Published Music Notation File 4
.IGQ Indigo Queue File 3.5
.IGR Igor Engraver File 3.8
.IGR Quest3D Channel Group Layout File 3
.IGS IGES Drawing File 4.3
.IGS Indigo Renderer Scene File 4.1
.IGT iGrafx Document Template 3.2
.IGX iGrafx Document 4.5
.IHW IN-HEH Timeline Workspace 4.5
.IHX IN-HEH Timeline Database 4.2
.II IconWorkshop Extended Information File 4.5
.IIF Intuit Interchange Format File 4
.IIL CleanSweep Installation Log 3
.IIM iMacro Macro File 4.3
.IIP Install Creator Pro Project File 4
.IIP ThinAnywhere Configuration File 3.5
.IIQ Phase One RAW Image 3.6
.IIT Install Creator Project File 3.8
.IIX Translation Memory Index File 3
.IK CryENGINE IK Animation File 4.2
.IKF INTUS Keyboard File 3.5
.IKMP IK Multimedia Preset FIle 4
.ILBM Interleaved Bitmap Image 3.5
.ILDOC QuickSilver Document 4.2
.ILK Incremental Linking File 4.5
.IM4P IMG4 Payload File 3.5
.IMA Sage ACT! Email Message 4.5
.IMA Disk Image 4
.IMAGE Apple Disk Image 4.4
.IMAGE OpenQwaq Image 3.9
.IMAGEPORTFOLIOLIBRARY Painter Image Portfolio Library 3.5
.IMAPMBOX IMAP Mailbox 3.5
.IMD GIS Image Metadata File 3.5
.IMD Microsoft VisioModeler File 3
.IME Windows Input Method Editor File 4
.IMF Id Music File 3.5
.IMG Disc Image Data File 4.5
.IMG Macintosh Disk Image 4.2
.IMG Grand Theft Auto Data File 4
.IMG Garmin Map File 3.5
.IMG Floppy Disk Image 3.4
.IMG GEM Image 3.2
.IMG3 iPhone IMG3 File 4
.IMGA Aleph One Image File 3
.IMI Magellan Map File 4
.IMJ JFIF Bitmap Image 3
.IML IntelliJ IDEA Module 4.5
.IML ACT! Internet Mail Message 4.2
.IMM iMindMap Map File 3.5
.IMMODULES GTK+ Module File 3
.IMOVIEEVENT iMovie Event File 3
.IMOVIELIBRARY iMovie Library File 4.2
.IMOVIEMOBILE iOS iMovie Project File 4
.IMOVIEPROJ iMovie Project File 3.9
.IMOVIEPROJECT iMovie Project 4.5
.IMP Improv Spreadsheet 3.6
.IMP Audition Impulse File 3.5
.IMR Impromptu Report File 4.5
.IMT My Time Data File 4
.IMTX iMindMap Template File 4
.IMX iMindMap Map File 4.2
.IMY iMelody Ringtone File 4
.IMZ WinImage Compressed Disk Image 4
.IN Input File 4.7
.IN Spyware File 4.2
.INC Include File 4.2
.INCA InCopy CS3 Assignment File 4
.INCD InCopy Document 3.5
.INCP InCopy CS3 Package File 3.5
.INCT InCopy Template 3.5
.INCX InCopy CS3 Interchange File 4.2
.IND Adobe InDesign Document 4.3
.IND Memory Stick Formatting File 4.2
.INDB Adobe InDesign Book File 3.5
.INDD Adobe InDesign Document 4.2
.INDESIGNPLUGIN Adobe InDesign Plug-in 3.8
.INDK Adobe Shortcut Set File 3.5
.INDL Adobe InDesign Library 4
.INDP Adobe InDesign CS3 Package File 3.5
.INDS Adobe InDesign Snippet File 4
.INDT Adobe InDesign Template 3.9
.INETLOC Internet Location 4.5
.INF Setup Information File 4.5
.INF_LOC Windows Driver Information Cache File 4.5
.INFO Texinfo Document 4.6
.INFO Generic Information File 4.5
.INFO ZoomBrowser Image Index File 4.2
.INFO Drupal Module Information File 4
.INFO Minecraft Forge Information File 4
.INFOPATHXML Microsoft InfoPath Form 4
.INFORM Inform Project 3.5
.ING MasterCook Ingredients File 4.5
.INI Windows Initialization File 4.5
.INI Gravis UltraSound Bank Setup File 4
.INI Symbian OS Configuration File 3.5
.INI Finale Preferences File 3.4
.INK Mimio Ink Data File 4.2
.INK InkML Image 4.2
.INK Pantone Reference File 3.2
.INK Pocket PC Handwritten Note 3
.INL C++ Inline File 4
.INLK Adobe InDesign Lock File 4
.INM FaxMaster Document 3
.INMS Adobe InDesign Menu Set File 3.2
.INO Arduino Sketch File 4.5
.INP Urdu InPage Document 4.5
.INP Abaqus Input File 4.3
.INP Sony Camcorder Image Management File 4
.INP gretl Script File 4
.INP MAME Replay File 3.2
.INPROGRESS Time Machine Backup Progress File 3.9
.INS Sample Cell II Instrument Definition File 4.7
.INS Adlib Tracker Instrument File 4.5
.INS LaTeX Installer Script 4.5
.INS Internet Settings File 4.5
.INS Ensoniq Instrument 4.5
.INS Internet Naming Service File 4.4
.INS Inspiration File 4.4
.INS AGT Game Instruction File 4
.INT Fallout Compiled Script 4.5
.INT Unreal International Localization File 4.2
.INT SGI Integer Image 4.2
.INT Sony Camcorder Image Management File 4.2
.INTERNETCONNECT Apple Internet Connect Document 3.2
.INV INVedit File 3.5
.INX Adobe InDesign Interchange File 4.5
.INX Inkscape Extension Descriptor File 4.5
.INX Compiled Script 4.1
.IOBIT Advanced SystemCare Rollback File 4.2
.ION File Description File 4.8
.IP IconPackager Theme File 4.5
.IPA iOS Application 4.5
.IPALIAS iPhoto Alias File 3.5
.IPCC iPhone Carrier Bundle 4.2
.IPCH Intellisense Precompiled Header File 4.3
.IPD BlackBerry Backup File 4.3
.IPF Interchangeable Preservation File 3.9
.IPF iMPACT Project File 3.8
.IPF SMS Installer Script 3.8
.IPF OS/2 Help File 3
.IPG iPod Game File 4
.IPHOTO iPhoto Library File 4.5
.IPHOTOPROJECT iPhoto Print Project 3
.IPICK iPick Football Image 3.5
.IPJ Inventor Project File 4.5
.IPK Itsy Package 4.2
.IPL GTA Item Placement File 4.5
.IPLB iPhoto Library Archive Document 3
.IPMETA Apple iPhoto Metadata File 4
.IPN Inventor Presentation File 4
.IPOD Rockbox Firmware File 3.5
.IPP Inline Guard Macro File 3.2
.IPR InstallShield Professional Project File 4.5
.IPR IntelliJ IDEA Project File 4.2
.IPR iProcrastinate Data File 3.5
.IPROJECT iClone Project File 4.2
.IPS Internal Patching System Patch File 4.5
.IPSPOT iPhoto Spot File 3.8
.IPSW iPod and iPhone Software Update File 4.7
.IPT Inventor Part File 4.2
.IPTHEME IconPackager Raw Theme File 3.8
.IPX IPIX Image 3.8
.IQY Internet Query 3.5
.IRCP SpeedGrade IRIDAS Composite File 4.5
.IRF CCTV DVR H.264 Video File 3.8
.IROCK intelliRock Sensor Data File 4
.IROS Adobe Save For Web Settings File 3.5
.IRP Internet Researcher Project File 3.5
.IRR Irrlicht 3D Scene 4.5
.IRR Brewer Lamp File 3.5
.IRRMESH Irrlicht Static Mesh File 4
.IRS Adobe Save For Web Settings 4.2
.IRX Brewer Irradiation File 4.5
.IS1 Synergy/DE Data Index File 3
.IS1 M3 Sakura Real-Time Save 1 File 3
.ISALE iSale Auction 4
.ISALETEMPLATE iSale Template 4
.ISALLIC iSale License File 3
.ISC Xilinx Device Configuration File 3.5
.ISD Flexera InstallShield Dialog Box File 4.5
.ISE InstallShield Express Project File 4.7
.ISE Xilinx ISE Project 4
.ISF Inspiration Flowchart Document 4
.ISH ISH Compressed Archive 3
.ISH1 Animation-ish Wiggledoodle-ish Document 4.5
.ISH2 Animation-ish FlipBook-ish Document 3.5
.ISH3 Animation-ish Advanced-ish Document 4
.ISM InstallShield Project File 4.7
.ISM IIS Smooth Streaming Manifest File 4.5
.ISMA IIS Smooth Streaming Audio File 4.5
.ISMC Smooth Streaming Client Manifest File 4
.ISMCLIP iStopMotion Animation Clip 3.8
.ISMV IIS Smooth Streaming Video File 4.2
.ISN Installer Source Files 4.7
.ISO Disc Image File 4.7
.ISO Arbortext IsoDraw Document 4.5
.ISO PlayStation 2 ROM File 4.3
.ISOZ Compressed Arbortext IsoDraw Illustration 4.2
.ISP IIS Internet Service Provider Settings 4.2
.ISPC Image Surfer Pro Collection File 4
.ISR GoMoku Game File 4.5
.ISS Inno Setup Script 4.5
.ISS InstallShield Silent Response File 4.5
.IST InstallShield Project Template File 4
.IST Inspiration Template 3.5
.ISU InstallShield Uninstaller Script 4.6
.ISX SimulationX Project 4
.ISZ Zipped ISO Disk Image 4.3
.IT Impulse Tracker Module 4.3
.ITA IconTweaker Theme Archive 4.6
.ITA VTech InnoTab Application File 3.5
.ITC iTunes Cover Flow Data File 3.8
.ITC2 iTunes Cover Flow Data File 2 4.4
.ITDB iTunes Database File 4.5
.ITE iTunes Extras File 4.2
.ITEMDATA-MS Windows 8 Start Screen Item Data File 4
.ITHMB iPod and iPhone Photo Thumbnails File 4
.ITI Impulse Tracker Instrument 4
.ITK ScummVM Game Data File 3.2
.ITL iTunes Library File 4.1
.ITLP iTunes LP Album File 4
.ITLS iTunes Live Stream URL 4.2
.ITM iThink Model File 3.5
.ITMS iTunes Music Store Link File 3.5
.ITMSP iTunes Store Package 4.5
.ITN TomTom Navigator Itinerary File 4
.ITPC iTunes Podcast Link File 3.5
.ITR Icy Tower Replay File 3.5
.ITS Impulse Tracker Sample 4.2
.ITS Internet Document Set 3
.ITT IconTweaker Theme File 3.5
.ITW InTouch With Database File 4
.ITX ITX Form Template 4
.IUP Fritz Update File 3.2
.IUS InfoTMIC Firmware Update File 3.5
.IV Open Inventor Scene Graph File 4.7
.IV2I Norton Ghost Incremental Virtual Volume Image 4
.IVA Surveillance Video File 3.5
.IVA Dementia.4207 Virus File 3
.IVC InteliSea Vessel Configuration File 3.5
.IVD Bitdefender Incremental Virus Definitions File 3.3
.IVE OpenSceneGraph Binary File 4.2
.IVF Indeo Video Format File 4.5
.IVR Internet Video Recording 4.3
.IVR Image Worlds File 3.2
.IVS Initialization Vector File 4.2
.IVS Internet Streaming Video 3
.IVT International Volleyball 2006 Data File 4.3
.IVT Beyond 20/20 Table File 3.3
.IVUE Live Picture IVUE Image 3
.IW Chain Engineering Database File 3.5
.IWA iWork Archive File 3.6
.IWB IWBasic Source Code File 4
.IWD Call of Duty Game Data File 4.3
.IWDGT iWeb Widget File 4
.IWI Infinity Ward Texture File 4.5
.IWS IntelliJ IDEA Web Page 4
.IWS InstallWatch Scan File 3
.IWXDATA iWorx Data File 4.2
.IWZ InstallShield Express 2 Project File 3.5
.IX dtSearch Index File 4
.IX2 WordPerfect Address Book File 4
.IXA Ulead Disc Image format 4
.IXB Ulead Disc Image 3.8
.IZE IZArc Archive 3.3
.IZZ Isadora Media Control Project 4
.IZZY Isadora Project 4.2