Sorted alphabetically: I


File extension The full name of the file Category

I file extension

Visual Studio Intermediate File

Developer Files

I00 file extension

DVD Shrink Part 1 File

Disk Image Files

I01 file extension

DVD Shrink Part 2 File

Disk Image Files

I02 file extension

DVD Shrink Part 3 File

Disk Image Files

I3D file extension

Houdini Image 3D File

Raster Image Files

I3PACK file extension

Point Blank Game Data File

Game Files

I5Z file extension

IUCLID 5 Import/Export File

Data Files

IAA file extension

INTUS Audio Archive

Audio Files

IAF file extension

Outlook Internet Account File

Settings Files

IAM file extension

Inventor Assembly File

CAD Files

IAS file extension

Intermodulation Analysis System File

Data Files

IB file extension

InterBase Database

Database Files

IB2 file extension

IncrediBots 2 Saved Challenge File

Game Files

IB3 file extension

IncrediBots 3 Saved Challenge File

Game Files

IBA file extension

iBooks Author Document

Data Files

IBATEMPLATE file extension

iBooks Author Document Template

Data Files

IBB file extension

ImgBurn Project File

Disk Image Files

IBCD file extension

InstantBingoCard Document

Data Files

IBOOKS file extension

Multi-Touch iBook

Data Files

IBP file extension

IsoBuster Managed Image Information File

Disk Image Files

IBPLUGIN file extension

Interface Builder Plug-in

Plugin Files

IBQ file extension

IsoBuster Managed Image File

Disk Image Files

IBRO file extension

IncrediBots Robot File

Game Files

IBT file extension

Texture and Model File

Game Files

IC1 file extension

Low Resolution Imagic Graphics File

Raster Image Files

IC2 file extension

Medium Resolution Imagic Graphics File

Raster Image Files

IC3 file extension

High Resolution Imagic Graphics File

Raster Image Files

IC3D file extension

IC3D Scene File

CAD Files

ICA file extension

Citrix ICA File

Settings Files

ICAL file extension

iCalendar File

Misc Files

ICALENDAR file extension

iCalendar File

Misc Files

ICALEVENT file extension

iCal Event File

Data Files

ICALTODO file extension

iCal To Do File

Data Files

ICAP file extension

InCopy Package File

Layout Files

ICB file extension

Targa ICB Bitmap Image

Raster Image Files

ICBU file extension

iCal Backup File

Backup Files

ICC file extension

ICC Profile

Settings Files

ICD file extension

Installable Client Driver File

Settings Files

ICE file extension

ICE File Archive

Compressed Files

ICF file extension

Zoom Router Configuration File

Backup Files

ICG file extension

Image Comparer Gallery File

Data Files

ICHAT file extension

iChat Saved Chat Log

Data Files

ICL file extension

Windows Icon Library File

System Files

ICM file extension

Image Color Matching Profile

Settings Files

ICMA file extension

InCopy Assignment File

Misc Files

ICML file extension

InCopy Document

Layout Files

ICN file extension

Windows Icon File

Raster Image Files

ICNS file extension

Mac OS X Icon Resource File

System Files

ICO file extension

Icon File

System Files

ICON file extension

Icon Image File

Raster Image Files

ICONPACKAGE file extension

IconPackager Theme File

System Files

ICONTAINER file extension

CandyBar iContainer File

Misc Files

ICPR file extension

IconUtils Project File

Raster Image Files

ICR file extension

Image Comparer Results File

Data Files

ICS file extension

iCalendar File

Misc Files

ICURSORFX file extension

iCursor Effect File

Settings Files

ID file extension

Lotus Notes User ID File

Misc Files

ID2 file extension

Windows Live Messenger Emoticon File

Data Files

IDAP file extension

Adobe InDesign Assignment Package

Layout Files

IDB file extension

Visual Studio Intermediate Debug File

Developer Files

IDC file extension

Internet Database Connector File

Web Files

IDE file extension

Inventor iFeature File

CAD Files

IDEA file extension

Adobe Ideas Document

Vector Image Files

IDF file extension

MIDI Instrument Definition File

Settings Files

IDL file extension

Interface Definition Language File

Developer Files

IDLK file extension

Adobe InDesign Lock File

Misc Files

IDML file extension

Adobe InDesign Markup Language File

Layout Files

IDMS file extension

Adobe InDesign Snippet

Layout Files

IDPK file extension

Adobe InDesign Package for GoLive File

Layout Files

IDPP file extension

Adobe InDesign Preflight Profile

Settings Files

IDT file extension

Windows Installer Database Text Archive File

Developer Files

IDV file extension

Inventor Design View File

CAD Files

IDW file extension

Inventor Drawing

CAD Files

IDX file extension

Movie Subtitle File

Misc Files

IDX0 file extension

Runescape Cache Index File

Game Files

IDX255 file extension

Runescape Cache File

Game Files

IES file extension

IES Photometric Data File

Data Files

IF file extension

Procedimientos-Uno IFWin Project File

CAD Files

IFAITH file extension

iFaith SHSH File

Data Files

IFC file extension

Industry Foundation Classes File

3D Image Files

IFCXML file extension

Industry Foundation Classes XML File

CAD Files

IFCZIP file extension

Compessed IFC File

CAD Files

IFD file extension

InForm Document

Layout Files

IFF file extension

Interchange File Format

Audio Files

IFL file extension

3ds Max Image File List

Misc Files

IFO file extension

DVD-Video Disc Information File

Video Files

IFP file extension

GTA Animation File

Game Files

IFS file extension

InfoSlips Package

Data Files

IFW file extension

INTUS Firmware File

System Files

IGC file extension

Anime List Builder Input File

Data Files

IGES file extension

IGES File

3D Image Files

IGG file extension

SuiteProfiler Color Map File

Data Files

IGM file extension

Indigo Renderer Material File

3D Image Files

IGMA file extension

INTUS Graph Mask Archive

Data Files

IGN file extension

RoboHelp Ignore List File

Data Files

IGP file extension

Igor Published Music Notation File

Audio Files

IGR file extension

Igor Engraver File

Audio Files

IGS file extension

IGES Drawing File

CAD Files

IGT file extension

iGrafx Document Template

Vector Image Files

IGX file extension

iGrafx Document

Vector Image Files

IHW file extension

IN-HEH Timeline Workspace

Settings Files

IHX file extension

IN-HEH Timeline Database

Database Files

II file extension

IconWorkshop Extended Information File

Data Files

IIF file extension

Intuit Interchange Format File

Data Files

IIL file extension

CleanSweep Installation Log

Text Files

IIM file extension

iMacro Macro File

Executable Files

IIP file extension

Install Creator Pro Project File

Settings Files

IIQ file extension

Phase One RAW Image

Camera Raw Files

IIT file extension

Install Creator Project File

Settings Files

IIX file extension

Translation Memory Index File

Misc Files

IK file extension

CryENGINE IK Animation File

3D Image Files

IKF file extension

INTUS Keyboard File

Settings Files

ILBM file extension

Interleaved Bitmap Image

Raster Image Files

ILDOC file extension

QuickSilver Document

Layout Files

ILK file extension

Incremental Linking File

Developer Files

IMA file extension

Sage ACT! Email Message

Data Files

IMAGE file extension

Apple Disk Image

Disk Image Files

IMAPMBOX file extension

IMAP Mailbox

Misc Files

IMD file extension

GIS Image Metadata File

GIS Files

IME file extension

Windows Input Method Editor File

System Files

IMF file extension

Id Music File

Audio Files

IMG file extension

Macintosh Disk Image

Disk Image Files

IMG3 file extension

iPhone IMG3 File

System Files

IMGA file extension

Aleph One Image File

Game Files

IMI file extension

Magellan Map File

GIS Files

IMJ file extension

JFIF Bitmap Image

Raster Image Files

IML file extension

IntelliJ IDEA Module

Developer Files

IMMODULES file extension

GTK+ Module File

Settings Files

IMOVIEPROJ file extension

iMovie Project File

Video Files

IMOVIEPROJECT file extension

iMovie Project

Video Files

IMP file extension

Audition Impulse File

Audio Files

IMR file extension

Impromptu Report File

Data Files

IMT file extension

My Time Data File

Data Files

IMY file extension

iMelody Ringtone File

Misc Files

IMZ file extension

WinImage Compressed Disk Image

Disk Image Files

IN file extension

Spyware File

Misc Files

INC file extension

Include File

Developer Files

INCA file extension

InCopy CS3 Assignment File

Misc Files

INCD file extension

InCopy Document

Layout Files

INCP file extension

InCopy CS3 Package File

Data Files

INCT file extension

InCopy Template

Layout Files

INCX file extension

InCopy CS3 Interchange File

Layout Files

IND file extension

Memory Stick Formatting File

Misc Files

INDB file extension

Adobe InDesign Book File

Layout Files

INDD file extension

Adobe InDesign Document

Layout Files

INDESIGNPLUGIN file extension

Adobe InDesign Plug-in

Plugin Files

INDK file extension

Adobe InDesign Shortcut Set File

Misc Files

INDL file extension

Adobe InDesign Library

Layout Files

INDP file extension

Adobe InDesign CS3 Package File

Layout Files

INDS file extension

Adobe InDesign Snippet File

Layout Files

INDT file extension

Adobe InDesign Template

Layout Files

INETLOC file extension

Internet Location

Misc Files

INF file extension

Setup Information File

Settings Files

INFO file extension

ZoomBrowser Image Index File

Raster Image Files

INFOPATHXML file extension

Microsoft InfoPath Form

Layout Files

INF_LOC file extension

Windows Driver Information Cache File

System Files

ING file extension

MasterCook Ingredients File

Misc Files

INI file extension

Windows Initialization File

Settings Files

INK file extension

Mimio Ink Data File

Data Files

INL file extension

C++ Inline File

Developer Files

INLK file extension

Adobe InDesign Lock File

Misc Files

INM file extension

FaxMaster Document

Misc Files

INMS file extension

Adobe InDesign Menu Set File

Settings Files

INO file extension

Arduino Sketch File

Developer Files

INP file extension

Abaqus Input File

Data Files

INPROGRESS file extension

Time Machine Backup Progress File

Backup Files

INS file extension

Internet Settings File

Settings Files

INT file extension

SGI Integer Image

Raster Image Files

INTERNETCONNECT file extension

Apple Internet Connect Document

System Files

INV file extension

INVedit File

Game Files

INX file extension

Adobe InDesign Interchange File

Layout Files

IOBIT file extension

Advanced SystemCare Rollback File

Misc Files

ION file extension

File Description File

System Files

IOPLIST file extension

Mac OS X IOPLIST File

System Files

IP file extension

IconPackager Theme File

Data Files

IPALIAS file extension

iPhoto Alias File

Data Files

IPCC file extension

iPhone Carrier Bundle

Settings Files

IPCH file extension

Intellisense Precompiled Header File

Developer Files

IPD file extension

BlackBerry Backup File

Backup Files

IPF file extension

SMS Installer Script

Executable Files

IPG file extension

iPod Game File

Compressed Files

IPHOTO file extension

iPhoto Library File

Data Files

IPHOTOPROJECT file extension

iPhoto Print Project

Raster Image Files

IPICK file extension

iPick Football Image

Raster Image Files

IPJ file extension

Inventor Project File

CAD Files

IPK file extension

Itsy Package

Compressed Files

IPL file extension

GTA Item Placement File

Game Files

IPLB file extension

iPhoto Library Archive Document

Data Files

IPMETA file extension

Apple iPhoto Metadata File

Data Files

IPN file extension

Inventor Presentation File

CAD Files

IPOD file extension

Rockbox Firmware File

System Files

IPP file extension

Inline Guard Macro File

Developer Files

IPR file extension

InstallShield Professional Project File

Developer Files

IPROJECT file extension

iClone Project File

Data Files

IPS file extension

Internal Patching System Patch File

Game Files

IPSPOT file extension

iPhoto Spot File

Text Files

IPSW file extension

iPod and iPhone Software Update File

Misc Files

IPT file extension

Inventor Part File

CAD Files

IPTHEME file extension

IconPackager Raw Theme File

System Files

IPX file extension

IPIX Image

Raster Image Files

IQY file extension

Internet Query

Web Files

IRCP file extension

SpeedGrade IRIDAS Composite File

Video Files

IRF file extension

CCTV DVR H.264 Video File

Video Files

IROCK file extension

intelliRock Sensor Data File

Data Files

IROS file extension

Adobe Save For Web Settings File

Settings Files

IRP file extension

Internet Researcher Project File

Data Files

IRR file extension

Brewer Lamp File

Data Files

IRS file extension

Adobe Save For Web Settings

Settings Files

IRX file extension

Brewer Irradiation File

Data Files

IS1 file extension

M3 Sakura Real-Time Save 1 File

Data Files

ISC file extension

Xilinx Device Configuration File

Developer Files

ISD file extension

Flexera InstallShield Dialog Box File

Layout Files

ISE file extension

InstallShield Express Project File

Developer Files

ISF file extension

Inspiration Flowchart Document

Data Files

ISH file extension

ISH Compressed Archive

Compressed Files

ISH1 file extension

Animation-ish Wiggledoodle-ish Document

Data Files

ISH2 file extension

Animation-ish FlipBook-ish Document

Data Files

ISH3 file extension

Animation-ish Advanced-ish Document

Data Files

ISM file extension

IIS Smooth Streaming Manifest File

Video Files

ISMA file extension

IIS Smooth Streaming Audio File

Audio Files

ISMC file extension

Smooth Streaming Client Manifest File

Video Files

ISMCLIP file extension

iStopMotion Animation Clip

Video Files

ISMV file extension

IIS Smooth Streaming Video File

Video Files

ISN file extension

Installer Source Files

Misc Files

ISO file extension

Disc Image File

Disk Image Files

ISOZ file extension

Compressed Arbortext IsoDraw Illustration

CAD Files

ISP file extension

IIS Internet Service Provider Settings

Settings Files

ISPC file extension

Image Surfer Pro Collection File

Data Files

ISR file extension

GoMoku Game File

Game Files

ISS file extension

InstallShield Silent Response File

Settings Files

IST file extension

InstallShield Project Template File

Developer Files

ISU file extension

InstallShield Uninstaller Script

Executable Files

ISZ file extension

Zipped ISO Disk Image

Disk Image Files

IT file extension

Impulse Tracker Module

Audio Files

ITA file extension

IconTweaker Theme Archive

Compressed Files

ITC file extension

iTunes Cover Flow Data File

Misc Files

ITC2 file extension

iTunes Cover Flow Data File 2

Raster Image Files

ITDB file extension

iTunes Database File

Database Files

ITE file extension

iTunes Extras File

Data Files

ITEMDATA-MS file extension

Windows 8 Start Screen Item Data File

System Files

ITHMB file extension

iPod and iPhone Photo Thumbnails File

Raster Image Files

ITI file extension

Impulse Tracker Instrument

Audio Files

ITK file extension

ScummVM Game Data File

Game Files

ITL file extension

iTunes Library File

Data Files

ITLP file extension

iTunes LP Album File

Data Files

ITLS file extension

iTunes Live Stream URL

Audio Files

ITM file extension

iThink Model File

Data Files

ITMS file extension

iTunes Music Store Link File

Web Files

ITMSP file extension

iTunes Store Package

Data Files

ITN file extension

TomTom Navigator Itinerary File

Data Files

ITPC file extension

iTunes Podcast Link File

Web Files

ITR file extension

Icy Tower Replay File

Game Files

ITS file extension

Impulse Tracker Sample

Audio Files

ITT file extension

IconTweaker Theme File

Settings Files

ITW file extension

InTouch With Database File

Database Files

ITX file extension

ITX Form Template

Data Files

IUP file extension

Fritz Update File

Data Files

IUS file extension

InfoTMIC Firmware Update File

System Files

IV file extension

Open Inventor Scene Graph File

3D Image Files

IV2I file extension

Norton Ghost Incremental Virtual Volume Image

Backup Files

IVA file extension

Surveillance Video File

Video Files

IVC file extension

InteliSea Vessel Configuration File

Data Files

IVD file extension

Bitdefender Incremental Virus Definitions File

Data Files

IVE file extension

OpenSceneGraph Binary File

3D Image Files

IVF file extension

Indeo Video Format File

Video Files

IVR file extension

Internet Video Recording

Video Files

IVS file extension

Initialization Vector File

Data Files

IVT file extension

Beyond 20/20 Table File

Data Files

IVUE file extension

Live Picture IVUE Image

Raster Image Files

IW file extension

Chain Engineering Database File

Data Files

IWD file extension

Call of Duty Game Data File

Game Files

IWDGT file extension

iWeb Widget File

Web Files

IWI file extension

Infinity Ward Texture File

Raster Image Files

IWS file extension

IntelliJ IDEA Web Page

Developer Files

IWXDATA file extension

iWorx Data File

Data Files

IWZ file extension

InstallShield Express 2 Project File

Developer Files

IX file extension

dtSearch Index File

Settings Files

IX2 file extension

WordPerfect Address Book File

Data Files

IXA file extension

Ulead Disc Image format

Disk Image Files

IXB file extension

Ulead Disc Image

Data Files

IZE file extension

IZArc Archive

Compressed Files

IZZ file extension

Isadora Media Control Project

Video Files

IZZY file extension

Isadora Project

Video Files