I APLAC Source Code Data File (APLAC)

I Progress Database Include File (Progress Software Corporation)

I Phase Vocorder Analysis Data

I INTERCAL File

I C++ Preprocessor Intermediate File (Borland Software Corporation)

I Integra Database (Imagina Software)

I-E i-Enforce Security File (ICM Conversions & Management)

I0 Winter Windows Scheduler File

I00 (100-103) Winphone Phonebook

I16 Nokia Phone Logo File (Nokia)

I17 Pixel Power Collage

I18 Pixel Power Collage

I1C IBM Voice Type Language Newuser File

I1I IBM Voice Type Language Newuser File

I2C IBM Voice Type Language Newuser File

I2I IBM Voice Type Language Newuser File

I2S Invision for mIRC Settings

I3 Modula-3 Interface Source

I3C IBM Voice Type Language Newuser File

I3F I3 Fax File (Interactive Intelligence Inc.)

I3I IBM Voice Type Language Newuser File

I3ML I3ML Source Page

I66 Interactive66 Graphic Design Information

IA Roland Garros Tennis Person File

IA6 IApproach Data File (Workfile) (Tdata, Inc.)

IAF Quikscribe Intelligent Audio File (Quikscribe Pty Ltd)

IAF Informer Configuration (Dataconomy)

IAF Outlook Express Account Settings (Microsoft)

IAF Outlook 97 and 2000 E-mail Account Settings (Microsoft)

IAF IAFA Document

IAFA IAFA Document

IAM Inventor CAD (Autodesk, Inc.)

IAN Sterling Software COOL Business Team Model File

IAP TeamBG File

IAP ASM Palette

IAP Iguana Active Server Active Page Script (ILan Game)

IAR CD Katalog (KRISoftware)

IAS Iguana Active Server Script (ILan Game)

IAX IBM Image Access Executive Bitmap

IB7 Pixel Power Collage

IBA Image

IBA InfoHandler Infobase File (MDE Software)

IBA IBasic Source Code File

IBC IncrediBar Cursor File (IncrediMail Ltd.)

IBD PDS Picture

IBD Windows Installer File (Microsoft)

IBF Instant Backup

IBG NASA PDS Graphic Format

IBG Bert's Dinosaurs File

IBK (Kodak) Imaging for Windows Bookmark (Microsoft Corporation)

IBK Sound Blaster Instrument Bank (Creative Technology Ltd.)

IBK National Construction Estimator 32 Picture File

IBL IBasic Component Language File

IBL PCLTool Index-by-Location File (Page Technology Marketing, Inc.)

IBM Archdos Compressed File

IBM Commodore Amiga Graphics

IBP IsoBuster CD/DVD Layout File (Smart Projects)

IBQ IsoBuster Optical Media Data Container File (Smart Projects)

IBS i2 iBase File

IBS IncrediBar Skin (IncrediMail Ltd.)

IBT IBTracer Infiniband Link And Protocol Analyzer InfiniBand Trace File (Computer Access Technology Corporation)

IBX Interscope BlackBox File

IBY ROM Image Component Include File

IC Modula-3 M3CG Intermediate Language File

IC Spice Initial Condition

IC1 ZyIMAGE Index

IC1 Imagic Bitmap Graphic

IC2 IMagic Bitmap Graphic

IC3 IMagic Bitmap Graphic

ICA Image Object Content Architecture (IOCA) Graphics File

ICA Citrix Independent Computer Architecture File (Citrix)

ICAL iCal Personal Calendar (Apple Computer, Inc.)

ICB Targa Bitmap

ICB Image Capture Board

ICC Apple ColorSync 2.0 (Apple Computer, Inc.)

ICC ICC Profile Format File

ICC IronCAD Catalog

ICC Kodak Printer Image

ICC Animation Softdisk

ICD File Associated with Many Games

ICD Rayman2 Game File

ICD Rate Structure File

ICD IronCAD 2D CAD File

ICD ASTi Model Builder

ICE Archive

ICE Freeze! Compressed Archive (Reeve Soft)

ICE ICEOWS Compressed File (Rapha?l et B?atrice Mounier)

ICE Cooltalk Audio

ICF Insane Chat Saved Conversation

ICF Cheyenne AntiVirus

ICF ICOM CS-2100 Radio Programming Data

ICF INI Creator for X10 Remote Control

ICF RapidForm INUS Compression Format File (INUS Technology, Inc.)

ICL Clean File

ICL Icon Library File

ICM ICC Profile, Acer Monitor Drive

ICM Windows Color Matching Control (Microsoft Corporation)

ICM Earl F. Glynn Color Tablecolor Table

ICM Image Color Matching Profile File (Kodak)

ICMP Internet Control Message Protocol

ICMS Ragtime Extensions File

ICN HP Palmtop 100/200LX Icon

ICN AT&T Graphic Format

ICN Bert's Dinosaurs File

ICN Icon Programming Language Source Code File

ICN Micrografx Icon

ICN RIPTerm Image

ICN SunOS Mono Icon

ICO Sun Icon/Cursor

ICO Windows Icon (Microsoft)

ICO GIMP Icon (The GIMP Team)

ICO OS/2 Icon

ICON Sun Icon/Cursor

ICP UNIX Icontact Parameter File

ICP InterCept File

ICQ ICQ Saved File (ICQ Inc.)

ICR NCSA Telnet Interactive Color Raster Graphic

ICS iCalendar Calendar Data

ICS SwiftView ICS Command File (SwiftView, Inc.)

ICS Outlook Calendar File (Microsoft)

ICS IronCAD 3D CAD File

ICS Image Cytometry

ICS Inovate 3D CAD File

ICT TIFF and ISO Image Related File

ICV In Chair Viewing

ICV Bond .AVI Film

ICW InterCAD File

ICW MS Internet Explorer Internet Connect Wizard

ICW Icon

ICX VisualAge Smalltalk Enterprise Program Image File (IBM)

ICX More Than Words File

IC_ Compressed LCT File

ID Pegasus Mail (David Harris)

ID Disk Identification File

ID MS Data Map (Microsoft)

ID Notes ID File (IBM)

ID 3D Graphic

ID Gamecode

ID AOL Instant Messenger Buddy Icon (America Online, Inc.)

ID3 ID3 Resource

IDA IIS Server File (Microsoft)

IDAPI Integrated Database Application Programming Interface (Borland Software Corporation)

IDB IDA Database

IDB MS Developer Intermediate MDPX File

IDB Delphi Pascal Object File

IDB Database Used by Disassembler

IDB A-B-CD Info File

IDB Developer Intermediate File (Microsoft)

IDC Structured Query Language (SQL)

IDC Core IDC

IDC IDA C Language Source Code

IDC Internet Database Connector Document

IDD MIDI Instrument Definition

IDD Complete Works Database-related File (Toplevel Computing)

IDE ideCAD Architectural Architectural 3D Design Model (ideYAPI Ltd. Sti.)

IDE ideCAD Structural Structural 3D Design Model (ideYAPI Ltd. Sti.)

IDE C++ Project (Borland Software Corporation)

IDE Grand Theft Auto III Model IDs and Properties (Take-Two Interactive Software, Inc.)

IDE Integrated Development Environment Configuration File

IDE Sophos Anti-Virus Virus Identity File

IDEA Brainbloom Document (Gael Limited)

IDEMO Instant Demo Project File (NetPlay Software)

IDENTIFIER Internet Explorer Zone Identification Information (Microsoft Corporation)

IDF MIDI Instruments Definition File (Microsoft)

IDF Printed Circuit Board Data Exchange File

IDF Identification File

IDF ARTiSAN Real-time Studio ID

IDI i-deas Web ACCESS File

IDIF Netscape Saved Address Book

IDK OS/2 Saved SKF Format File (IBM)

IDL OMG CORBA Interface Definition Language

IDL CRiSP Harvest File

IDL Visual C++ Interface Definition File (Microsoft)

IDL Snappy Devdocs

IDLK InDesign Lock File (Adobe Systems Inc.)

IDM Ulead Photo Express Messages File

IDMEF Snort File

IDQ Internet Data Query File

IDQ Structured Query Language (SQL) Query

IDR CompactDRAW Object(s) (MediaChance)

IDS Infinity Game Engine Numbers to Description Map (BioWare Corp.)

IDS Infini-D Scene File

IDS WFO-A Data

IDS Minos 3D Data File

IDS IDA Imported Names Format

IDT Output of DLL2IDT Utility

IDT Identification

IDT Text Archive Table

IDT Windows Installer File (Microsoft)

IDU Interleaf Desktop Utility (BroadVision)

IDV Inventor Design View Tree (Autodesk, Inc.)

IDW Inventor CAD (Autodesk, Inc.)

IDW IntelliDraw Vector Graphic (Adobe)

IDX Ca Visual Objects Platform for Developer (CAVO) Index File (CA)

IDX NoX

IDX Java Applet Cache Index (Sun Microsystems, Inc.)

IDX Complete Works Index File (Toplevel Computing)

IDX Clip Gallery 1.x Index (Microsoft)

IDX ArcView Geocoding Index For Read-Only Datasets (ESRI)

IDX Symantec Q&A Relational Database Index File

IDX AOL Temporary Internet Mail File

IDX Stork Format Header Information

IDX Outlook Express Mailbox Index (Microsoft)

IDX LaTeX Index

IDX Pro/ENGINEER Index File (PTC)

IDX Index

IDX Corel QuickFinder Information

IDX FAX File

IDX FoxPro Index (Microsoft)

IDX ICQ Index (ICQ Inc.)

IDY Debug Information File

IDY Index File

IDZ i-deas Web ACCESS File

ID_ C Poet Compressed Disk1 File

IE1-3 Internet Explorer 3 Address Book

IE3 Internet Explorer 3 File

IEE-695 IEEE 695 Information (Hewlett Packard)

IEF Image File

IEL Erazer98 File

IEM Informix Error Message

IES Photometric File Data

IF9 Pixel Power Collage

IFB Siebel Interface Configuration File (Siebel Systems)

IFC All Image Compressed Image File (Rundegren.com)

IFD Jet Form Design Form

IFF DESR VFF Greyscale Bitmap Image

IFF Amiga Bitmap Graphic (Amiga)

IFF Amiga Sound (Amiga)

IFF Bitmap Graphic

IFF Deluxe Paint Image (Electronic Arts, Inc.)

IFF Philips CDI File

IFF TextCraft Document

IFF ProWrite Document

IFF Simple Musical Score

IFF Sun TAAC Image File

IFF TDI Explore & Alias Wavefront Image

IFF The Sims Object/Data File (Electronic Arts (Maxis))

IFF Graphic, Sound

IFILE Amaya i386 File

IFL Descent 3 Ship Graphic

IFM IFS Applications Message File (IFS AB)

IFM Brighterion iPrevent Fraud Model

IFM Shana Informed Filler

IFN Amma Lsb v1.0 Initialization

IFO Info File

IFO DVD Info File

IFO ImageForge Pro Graphic Object Layer Data

IFP KnowledgeMan Script

IFR Formula 1 Racing Databin Cars Common File

IFS IconForge Image EXE Library

IFS Fractint Iterated Function System Fractal

IFS OS/2 Warp Installable File System

IFS Yuvpak Compressed Fractal Image

IFS InfoSlips Secure Information Package (InfoSlips)

IFS Fractint Iterated Function System Parameters

IFU All Image Uncompressed Image File (Rundegren.com)

IFX Rational XDE (IBM)

IFX IMAGINE Effect File

IFX ImageSoft v2.00 Graphic

IFX Fax File

IG Modula-3 Generic Interface Source

IGC SeeYou Flight Data (Naviter)

IGC Global Positioning System Datalog File (F?d?ration A?ronautique Internationale)

IGES IGES-Format

IGES Initial 2D/3D Graphics Exchange Specification

IGF Hijack Graphic Bitmap

IGF Image Systems

IGF Inset Systems Metafile

IGF Sound file

IGF Vector Graphic

IGJ iGrafx Published Web Content (iGrafx, a division of Corel Inc.)

IGL IGOR Saved Level File (Elmer Productions)

IGL inSORS IGLayout Layout File

IGM inSORS IGClient Meeting File

IGN ICQ Igonre List (ICQ Inc.)

IGNORE Likely a Text File Some programs write out a temporary file with an extension like .IGNORE. These are often text files. Just because it says you can ignore it does not mean you should delete it.

IGP InfoGest Configuration/Profile Settings (S.C. NVN Group S.R.L.)

IGP Igor Reader Sheet Music File

IGP IGOR Player File (Elmer Productions)

IGR Intergraph SmartSketch Drawing

IGR SmartSketch Drawing Design

IGS CAD Overlay

IGS Image Systems Grayscale, 8-bits

IGS IGES-Format

IGV inSORS IGClient Venue File

IGX Process (iGrafx (a division of Corel Inc.))

IHP Watcom Help File

IHS Bink Inbound History

IHT Intranet Connector Script File (SCORT)

IHTML Inline HyperText Markup Language (Inline Internet Systems, Inc.)

II Gcc Preprocessed C++ Source Code

IID Tonline BSW4 Fnstall Lid File

IIF QuickBooks Import/Export Interchange File (Intuit, Inc.)

III ARC+ Drawing (ACA)

III Intel IPhone Compatible File (Intel)

IIL Norton CleanSweep Installation Log (Symantec)

IIM iOpus Internet Macro

IIM Interscope InstallMaster Setup Project

IIM Inshape Graphic

IIM Music Module

IIMG Interleaf Graphic

IIT Install Maker Install Info File (Clickteam)

IIX Rational XDE (IBM)

IJS J Interpretor Script File

IJX J Language Execution Window (Source Code) (Jsoftware)

IKL InkBall (Microsoft)

IKO Windows Icon Resource

IL SimuPLC Electric Commands Language Instruction List (Andr? Luiz Barbosa)

IL FORTRAN 90 Inline Expansion File

IL Icon Library

IL MSIL Assembler Input File (Microsoft)

IL Euphoria Shrouded Source Code (Rapid Deployment Software)

ILB Scream Tracker Data

ILBM Amiga Interleaved Bitmap Format (Amiga)

ILBM Graphic, Sound

ILBM Deluxe Paint Graphic (Electronic Arts, Inc.)

ILF SMS Insight Log File (Ag Leader Technology, Inc.)

ILF Omniscope Application-Specific Data (Iokio Ltd)

ILG TeX MakeIndex Track File

ILG InstallShield Log File (InstallShield Software Corporation)

ILK Ilink Program Format Outline (Microsoft)

ILL 2D Graphic

ILL Agati Illustrated Image

ILL ILL Transaction File

ILL Illustrator Prologue (Adobe)

ILM Illuminatus Opus Multimedia File

ILM Satsang Quiz File

ILM Iomega Zip Drive Speed Configuration File

ILM CAS 200 QDA v3.0 Image List Mode File

ILM Amiga IFF Image (Amiga)

ILPLOPTIONS InterLock and PowerLock

ILPLVOUCHERS InterLock and PowerLock

ILS Internet Security And Acceleration Server Summary (Microsoft)

ILS Win3 Windows Word File

ILSR Iomega Reader

ILV ILOG View File

ILVG iLiving P-to-P

IM Sun Raster File

IM 3D Graphic

IM AOL Instant Messenger Grey Scale Image (America Online, Inc.)

IM04 Image Sun Raster

IM1 Sun Raster File

IM24 Bitmap Graphic

IM30 Image Sun Raster

IM32 Bitmap Graphic

IM5 Visilog (NorPix, Inc.)

IM5 Visilog

IM7 DaVis Graphic (LaVision GmbH)

IM8 Sun Raster Graphic

IM? 2D Graphic

IMA Mirage Vector Graphics

IMA WinImage File

IMA AOL Instant Messenger Grey Scale Image (America Online, Inc.)

IMA ImageMixer (Pixela Corporation)

IMA EGO - Chart - Autumn Mirage Vector Graphic

IMA IncrediMail Animation (IncrediMail Ltd.)

IMA Zenographics image

IMAGE Disk Copy, ShrinkWrap Disk Image

IMAGE Squeak Code File

IMAGINE Object & Texture Imagine 3.0

IMAKE Imake File

IMB IncrediMail Address Book and Temporary Contacts (IncrediMail Ltd.)

IMC MontagePlus Thumbnail Image Collection (Serif Europe Ltd.)

IMC IncrediMail (IncrediMail)

IMD Caseware IDEA

IME IncrediMail Emoticons (IncrediMail Ltd.)

IME Global Input Method Editor (Microsoft)

IMESHDEF iMesh Skin (iMesh)

IMF ImageForge/ImageForge Image EXE Library Saved Filtered Brush

IMF IncrediMail Letter/eCard (IncrediMail Ltd.)

IMF MIDI Music File

IMG Bitmap Graphic

IMG Planetary Data System

IMG Radiance Scene Description Image

IMG Sharp GPB

IMG Starbase

IMG Vicar

IMG Vivid Ray-tracer

IMG Grand Theft Auto III File (Take-Two Interactive Software, Inc.)

IMG Img Software Set Bitmap

IMG Grand Theft Auto III .DFF and .TXD Archive (Take-Two Interactive Software, Inc.)

IMG Ventura Publisher/GEM VDI Image Format Bitmap

IMG Microtek Eyestar

IMG Image Whatnot / Erdas Imagine MIS / Radiance / Starbase

IMG Idrisi32 Raster Image

IMG CloneCD Image (SlySoft Inc.)

IMG Apple Macintosh Disk Copy Format (Apple Computer, Inc.)

IMG Alias Bitmap Graphic

IMG ADEX Corporation ChromaGraph Graphics Card Bitmap Graphic

IMG All Image Raw Image (Rundegren.com)

IMG QEMU Qcow Disk Image (Fabrice Bellard)

IMG AutoCAD CAD-Camera (Autodesk, Inc.)

IMG Disk Copy, ShrinkWrap Disk Image

IMG ERDAS IMAGINE Image Format (Leica Geosystems , LLC)

IMG Floppy Image File

IMGSAO Aleph One Images (Marathon Open Source)

IMH IncrediMail Data File (IncrediMail Ltd.)

IMI Turbo Pascal DOS File (Borland Software Corporation)

IMI IncrediMail Animation (IncrediMail Ltd.)

IMJ JFIF File With a Microsoft Windows BMP Header

IMJ Pegasus Image Corp Bitmap

IMK IncrediMail License License (IncrediMail Ltd.)

IML ACT! Internet Mail Message File (Best Software CRM Division)

IMM IncrediMail Trash (IncrediMail Ltd.)

IMN IncrediMail Notifier (IncrediMail Ltd.)

IMP FileMaker Database Translation Filter

IMP TEX-DESIGN Clothing Design File (Koppermann Computersysteme GmbH)

IMP Gemstar eBook Publisher eBook (Gemstar eBook)

IMP Babya Installer Archive

IMP DVD File

IMP Crayola Art Image

IMP WinIMP Archive (Technelysium Pty Ltd)

IMP Urban Chaos Game File

IMP Pascal Implementation

IMP Improv Spreadsheet (IBM)

IMP IMP Archive

IMQ ImageQ Presentation

IMQ NASA Planetary Image

IMR IncrediMail Notifier (IncrediMail Ltd.)

IMR Cognos Impromptu Report Writer

IMS Incredimail Graphic Skin (IncrediMail Ltd.)

IMS SiteSpinner Project (Virtual Mechanics Inc.)

IMS IconForge

IMS Music File

IMS Rebel Assault File

IMSP Survey Pro Survey File (iMagic Software)

IMT egseing Image Mode

IMT IMNET Image

IMV Yahoo Instant Messenger IMVironment

IMV ImageMixerVCD Project File (Pixela Corporation)

IMW Imageware Surfacer 3D CAD Surface Geometry

IMW IncrediMail Sound (IncrediMail Ltd.)

IMX SAS/IML Workshop Matrix (SAS Institute Inc.)

IMX DaVis Binary Image File (LaVision GmbH)

IMY iMelody Ringtone Format (Infrared Data Association)

IMZ WinImage File

IMZ Compressed Floppy Image

IM_ Improve Compressed Audio File

IN Input File

IN McAfee Antivirus

IN smartGENERATOR Template (BITPlan)

IN$ HP NewWave Install File

IN0 INI Backup

IN1 INI Backup

IN3 Harvard Graphics Input Device Driver (Harvard Graphics)

IN7 Ox Object-Oriented Matrix Programming Language PcGive 7 Data File

INA DOS File

INB Visual Expert Source Code Documentation

INB Vermont HighTest Script

INB Rebel Assault Backup

INC Active Server Include File

INC Assembler language or Active Server Include File

INC Astro Windows

INC Include File

INC Internet Connection File

INC Spice Include File Subcircuit

INC JAWS for Windows Text File (Freedom Scientific)

INC MS-Backup Incremental File

INC PovRay 2 or 3

INC Wincommander Include File

INCD InCopy/InDesign Link File (Adobe)

IND Well of Souls Game File

IND Windows/Applog Index

IND Foxmail E-Mail Box Index

IND XMap Dataset Index (Delorme)

IND LaTeX or TeX Makeindx Index

IND Notes List files for Compact Task on Domino Server (IBM)

IND dBASE IV

IND Windows Shared Database File

IND InDesign Publication (Adobe Systems Inc.)

INDD InDesign Document (Adobe Systems Inc.)

INDEX Index File

INDIGO Indigo Graphics Format [Eddi Litvak]

INF OS/2 2.0 Information Presentation Facility (IPF) Data Format OS/2 PTR file : Cursor image file

INF Information or Setup File

INF BLUEWAVE Information File

INF OS/2 Buch Hypertext Help System File

INF Autorun

INF Pro/ENGINEER Temporary File (PTC)

INF Type 1 LaserJet Font Information File

INF Type Manager Font Information (Adobe)

INFINI-D Infini-D 3.0 Format

INFO ZoomBrowser Image Index (Canon, Inc.)

INFO Amiga Icon (Amiga)

INFO UNIX GNU Info Reader File

ING MasterCook Ingredients

INGR Intergraph Raster File Format

INH Visual Basic Basfwin File

INI Simple Exchange Rate Information File Format (SERIFF)

INI MWave DSP Synth's GM-setup File: MWSYNTH.INI

INI Gravis UltraSound Bank Setup File

INI Initialization/Configuration File

INK Tablet PC Digital Ink File (Microsoft Corporation)

INK Pantone Reference File

INK Mimio Ink File

INL Visual C++ Inline Function File (Microsoft)

INLX InDesign Library Interchange (Adobe Systems Inc.)

INM Fax Master File

INN COBOL/2 Overlay (Micro Focus)

INN PHANTASMAGORIA INI File

INO Inor IPRO Software File

INO Inno Setup Script Files File

INP FRANC2D Mesh File

INP CHARMM Input File

INP InPage

INP GIS Software Text Input File

INP Oracle Source Code

INP Self-Extracting Archive Utility Project

INP MacMolPlt GAMESS Input format

INP Tramo-Seats Input Specification File (Bank of Spain)

INP ABAQUS Input File (ABAQUS, Inc.)

INRS INRS-Telecommunications Sound

INS REAKTOR Instrument (Native Instruments)

INS Systems Management Server (SMS) Advertising Instruction File (Microsoft Corporation)

INS PUT Compressed File Archive (MicroFox Company)

INS Inspiration Mind Mapping Software File

INS WordPerfect (Corel Corporation)

INS Sample Cell / II Instrument

INS InstallShield Script (InstallShield Software Corporation)

INS IIS Internet Communications Settings (Microsoft)

INS Ensoniq EPS Family Instrument (E-MU Systems)

INS AdLib Instrument Music File

INS 1st Reader Install Script

INSCRIBE InScribe 2004 Egyptian Hieroglyphs Document (Saqqara Technology Ltd.)

INST Object Oriented Graphics Library (OOGL)

INST 3D Graphic

INSTALL Likely a Text File

INT Unreal Tournament Mutator

INT Signature Semi-compiled Program

INT Intermediate Code Used for Syntax Checking

INT Foxpro Code Page (Microsoft)

INT Delphi Interface Unit (Borland Software Corporation)

INTER Interspector Project File

INTERLOCKFAVOURITES InterLock and PowerLock

INTERNETMAILSEND Internet Mail Send Powertoy File

INTO Interspector Object File

INU INSPEC Configuration File

INV dnaLIMS Invoice File (dnaTools)

INV Lineage Inventory File (NCsoft Corporation)

INV Rainbow Six: Rogue Spear Inventory File (Red Storm Entertainment, Inc.)

INV Medlin Accounting Current Year Checks and Invoices (Medlin Accounting)

INV Windows Update file

INVENTOR Open Inventor File Translator How To [SGI]

INV_LOWRES Rainbow Six: Rogue Spear Inventory File (Red Storm Entertainment, Inc.)

INX ACL for Windows Index

INX InstallShield Compiled Rules File (InstallShield Software Corporation)

INX Foxpro Foxbase Index

INX Rational XDE (IBM)

IN_ Setup Information (Microsoft)

IN~ King's Quest 7, Grabriel Knight, Compressed File

IO IO Language Script (Steve Dekorte)

IO Modula-3 Object File

IO Compressed Archive

IOB iOnly ME Website Generator Backup (iOnly)

IOB Imagine File

IOB 3D Object TDDDB Format

IOB TDDD Format 3D Graphic Database

IOB Turbo Silver TDDDB Format

IOB Imagine Ver. 1 or 2 TDDDB Format

IOC Instant ORGcharting! Organization Chart

IOC Winamp Io Plug-in (File: IMGORG.IOC) (Nullsoft)

IOCA Image Object Content Architecture (IOCA) Graphics File

IOD DVGate DVMotion In/Out List

IOF Findit Document (Microsoft)

IOF Findit Document

IOK Omniscope Data File (Iokio Ltd)

ION Installation Description

ION NewsLeecher Description File (newsleecher.com)

ION 4DOS File Description

ION Mascot Data

IOP iOnly ME Website Generator File (iOnly)

IP IconPackager Theme (Stardock Corporation)

IP Interactive Physics Data

IP Profile

IP NRC Inspection Manual Inspection Procedures

IP Internet Protocol

IPC Interactive Publisher Pro Church Edition Project Data (Interactive Software Designs)

IPD InstallPROG 6 EDBS Install Database

IPD BlackBerry Backup File (Research In Motion Limited)

IPE ItsPersonal File

IPE Wacom Pen SYSTEM.INI and WIN.INI Backup

IPE Microth Stroke Set (Microth, Inc.)

IPF SMS Installer Script (Microsoft)

IPF Interchangeable Preservation Format (Classic Amiga Preservation Society)

IPF Grand Theft Auto III Animation Data (Take-Two Interactive Software, Inc.)

IPG Mindjongg Format

IPH InterPaint Hires Image

IPJ Inventor Project (Autodesk, Inc.)

IPJ InfinityQS SPC Project File (InfinityQS International)

IPK Sharp Zaurus PDA Application Install File

IPK NRG iPack File

IPK internet PacKage Archive (direct Netware Group)

IPL IPLab 3.1

IPL PLATO Web Learning Network (PWLN) Temporary File (PLATO Learning, Inc.)

IPL InstallPROG 6 EDBS File Library

IPL Ink Palette

IPL Corel Pantone Spot Reference Palette

IPL Grand Theft Auto III Object Placement Data (Take-Two Interactive Software, Inc.)

IPL22 PLATO Web Learning Network (PWLN) Temporary File (PLATO Learning, Inc.)

IPLI IPLab Graphic

IPM Image Pro Plus Ver. 5 Macro (Media Cybernetics Inc.)

IPN Inventor Presentation (Autodesk, Inc.)

IPOD Rockbox Executable Application (The Rockbox Crew)

IPP Help & Manual Proprietary Image

IPR IntelliJ Project XML File

IPR SMART Ideas Document (SMART Technologies Inc.)

IPS IPScript File

IPS International Patching System Binary Patch File

IPS Game Patch File

IPS MENSI 3Dipsos (MENSI Corporation)

IPT InterPaint Multicolor Image

IPT Inventor CAD (Autodesk, Inc.)

IPTC Newswire Profile

IPTHEME IconPackager Icon Theme Package (Stardock Corporation, Inc.)

IPU Vocaltech Iphone Internet Phone User File

IPW UniPlot Graph

IPX Interactive Pictures Corporation AV File

IPX Ipix Spherical Panorama

IPX Viewpoint iPix File

IPZ ICQ Skin (ICQ Inc.)

IQ IBM Query File

IQA AmeriCalc Application

IQB AmeriCalc Backup

IQC AmeriCalc Client File

IQC CADIQ Comparison Analysis Result File (ITI TranscenData)

IQD AmeriCalc Database

IQD Webstir File

IQF Integra 3.0 Query File

IQI IBM Query

IQJ CADIQ Specific Tasks/Analysis Details (ITI TranscenData)

IQL CADIQ Log File (ITI TranscenData)

IQP 20-20 Office Sales Exported Quote (20-20 Technologies)

IQR CADIQ View Analysis Results (ITI TranscenData)

IQR IBM Query

IQS CADIQ Summary Log File (ITI TranscenData)

IQS AmeriCalc Security File

IQT IBM Query

IQU AmeriCalc Update

IQY Excel Web Query (Microsoft)

IQY Internet Inquiry (Microsoft Corporation)

IRC IRCAM Format Sound

IRC Nevo Infra-red Device Code (Universal Electronics Inc.)

IRCD iArcade Game Package (Brooklyn Games, Inc.)

IRD IRD Append File

IRD Money Temporary File (Microsoft)

IRF Phonecat2 Ocp97 File

IRF RoomBox 6 IR Code File (Living Control)

IRI Thermography Studio Infrared Image (GORATEC Technology GmbH & Co. KG)

IRIS Silicon Graphics RGB

IRIX Irix Make File

IRIX6 Irix 6 File

IRIX64BIT Irix 64 Bit Make File

IRK iArcade Game Package (Brooklyn Games, Inc.)

IRL ILOG JRules ILOG Rule Language File (ILOG, Inc.)

IRS WordPerfect Resource File (Corel Corporation)

IRTP Graphicon-2000 Interactive Real-Time PHIGS Graphic

IRV XMap Workfile (ImageReg) (Delorme)

IRX Brewer Lamp Irradiation File

IRX PS2 Modified Elf Object File

IRX IBM Mainframe Rule File

IRZ iROS Application Packaging Unit (Interactive Workspaces Project, Stanford University)

IS Modula-3 Intermediate Assembly File

ISBN HM3 Tutorial Software

ISC iScreensaver Designer Project File (Xochi Media Inc.)

ISC Xilinx Integrated Software Environment Device Configuration Information (Xilinx, Inc.)

ISC GRDSOZ4W ISCII File

ISC RVS-COM Prepaid SMS Package File (Living Byte Software GmbH)

ISC Internet Servide Providers Configuration File

ISD GraphPad InStat

ISD InstallShield Dialog (InstallShield Software Corporation)

ISD RapidFile Dictionary

ISD dynaSight File

ISF Inspiration Concept Map (Flowchart) Document (Inspiration Software, Inc.)

ISF ModelPress Highly-compressed CAD Model (Informative Graphics Corporation)

ISFF Intergraph Standard File Format

ISH Compressed Archive File

ISH Image System

ISH Image Speeder

ISK Command File

ISL The Universal Game Server Export File (The Universal Development Team)

ISL InstallShield Temporary Installer File (InstallShield Software Corporation)

ISL Inno Setup 1.3 File

ISL DB-MAIN Scheme File

ISM Image System

ISML Intershop Enfinity

ISO InstallShield Uninstall File (InstallShield Software Corporation)

ISO ISO-9660 Table

ISO RichWin

ISO SEGA CD/Sony Playstation Game File

ISO ISO-9660 CD Disc Image

ISO Easy CD Creator Disc Image (Sonic Solutions)

ISO CALS ISO 8613 Bitmap

ISO Cimagraphi CAD File (Graphitech Ltd)

ISO Virtual PC Virtual CD-ROM Image (Microsoft)

ISOD CloneDVD ISO Image (Elaborate Bytes AG)

ISP Internet/Internationnal Communication Settings parameter file

ISP Internet Sign-up File

ISP Internet Communication Settings

ISP IIS Internet Service Provider Settings (Microsoft)

ISR Go-Moku Game File

ISR Streets & Trips Route File (Microsoft)

ISR Uninstaller Text File

ISS InstallShield Response File (InstallShield Software Corporation)

ISS Caseware IDEA IDEAScript

ISS The Longest Journey Sound File (Funcom)

ISS Inno Setup Script (Jordan Russell's Software)

ISS ISS Graphic

IST TeX MakeIndex Style Index

IST IsoStar Library of Intermolecular Interactions (The Cambridge Crystallographic Data Centre)

IST Imagine Staging Stage Editor File (Impulse, Inc.)

IST Digitrakker Instrument File

IST Systems Management Server (SMS) Remote Instruction File (Microsoft Corporation)

ISTG Imagine Staging Stage Editor File (Impulse, Inc.)

ISTR IsoStar Library of Intermolecular Interactions (The Cambridge Crystallographic Data Centre)

ISU Netscape File

ISU InstallShield Uninstall Script (InstallShield Software Corporation)

ISU Easy CD Creator 4 Uninstall File

IT Sound

IT Intalk Settings

IT Read.it

IT Impulse Tracker Music Module

IT3 Internet Timer 3 Log File

ITA Personal Paint Italian Language User Interface File (Amiga)

ITA Italian README File

ITA IconTweaker Theme

ITC Uthscsa Imagetool Calibration File

ITE E-Tabs Reader File

ITF Inside Tract File

ITF JPI TopSpeed Pascal Interface File

ITG Intergraph Format

ITH InTether Receiver File (Infraworks Corporation)

ITHMB iPod photo Thumbnail Image (Apple Computer, Inc.)

ITI Impulse Tracker Instrument

ITL iTunes Music Database File (Apple Computer, Inc.)

ITM Diablo II Item (Blizzard Entertainment)

ITM Item / Article / Zone

ITM Infinity Game Engine Inventory Object (BioWare Corp.)

ITP IconTweaker Plug-in

ITP riteMail Mail and Notes File (Pen&Internet, LLC)

ITR IntroCreator Project File (Klaus Schwenk)

ITR Icy Tower Replay (Johan Peitz, Free Lunch Design)

ITS Internet Document Set

ITS Impulse Tracker Sample

ITS International Translation

ITU Sheffield Dictionary File

ITW IT Works Database (Simple Solutions)

ITW Icetips Wizard Editor

ITX Igor Chromatogram File

ITX Impulse Imagine for Windows

ITX ISB Raw Song Format

ITX ITRANS Multilingual Transliteration Scheme

ITX Texture IMAGINE

ITZ Amiga and PC Tracker Module

ITZ Impulse Tracker Music Module

IUM infoUSA Network Meter File (infoUSA.com, Inc.)

IV VRML File

IV Open Inventor (Silicon Graphics, Inc.)

IV-VRML Inventor VRML Format Document

IVB Truevision Targa Format Bitmap

IVC iView MediaPro Catalog (iView Multimedia Ltd.)

IVD Beyond 20/20 Microdata Dimension or Variable-level File

IVD ISPS for Windows Multi-dimensional Data Store (International Planning & Research Corporation)

IVF Indeo Video File (Intel Corporation)

IVI MSDN InfoViewer 5.0 Topic (Microsoft)

IVN iView MediaPro Catalog Notepad File (iView Multimedia Ltd.)

IVNU Inetba Web Page (Inetba)

IVP PhotoSuite Ver 4 Image-based Virtual Reality Text File (Sonic Solutions)

IVP Truevision Targa Bitmap

IVP Beyond 20/20 User Subset Profile

IVQ MSDN InfoViewer 5.0 index full-text searches

IVR Virtual Reality World Live Picture

IVS iVisit

IVS ImageView Storage File (Infinite Solutions)

IVS ISPS for Windows Settings File (International Planning & Research Corporation)

IVT MSDN InfoViewer 5.0 Information Title

IVT Concordance Inverted Full Text Database File

IVT Beyond 20/20 Table

IVU IVUE Live Picture Drawing

IVUE Live Picture Multi-view Format

IVWD IntelliVIEW Designer Data/Layout File (Synaptris; products division of Cybernet Software Systems, Inc.)

IVWL IntelliVIEW Designer Report Layout File (Synaptris; products division of Cybernet Software Systems, Inc.)

IVWR IntelliVIEW Designer Report File (Synaptris; products division of Cybernet Software Systems, Inc.)

IVWR IntelliVIEW Offline Report File (Cybernet Software Systems Inc.)

IVX Beyond 20/20 Extract

IW Idlewild Screensaver

IW Iconware Application

IW IconAuthor - HSC InterActive Presentation Flowchart

IW IBM Updater File

IW4 DjVu File

IWA IBM Writing Assistant Text

IWC Installwatch Database

IWC WaveL Wavelet Compressed Bitmap (WaveL Software)

IWI Ignite Image Optimiser

IWM IconAuthor Start File (AimTech Corp)

IWP InfinityQS SPC Web Publishing Configuration (InfinityQS International)

IWP Wang Text File

IWR i*write 2.0 File

IWR_BAK i*write 2.0 Backup File

IWS InstallWatch Scan Results (Epsilon Squared)

IWZ ItemWizard File

IX WordPerfect Office Template File (Corel Corporation)

IX Modula-3 Linker Information

IX PaperPort Search File (ScanSoft Inc.)

IX WordPerfect Office Template File (Corel Corporation)

IX FrameMaker Index File (Adobe)

IX1 Rebel Chess Program Database File

IX2 WordPerfect Office Calendar File Calendar File (Corel Corporation)

IX2 WordPerfect Office Template File (Corel Corporation)

IX2 Rebel Chess Program Database File

IX3 Instant.EXE 3.0 Script (ASXperts Inc.)

IX3 Rebel Chess Program Database File

IX4 Rebel Chess Program Database File

IXA Ulead Image File

IXB Ulead Video Image File (Ulead Systems, Inc.)

IXC Index+ for Windows Code Definition File (System Simulation Ltd.)

IXC ArcView Geocoding Index For Read-Write Coverages (ESRI)

IXE InterEX Control File

IXF Index+ for Windows Form Defintion File (System Simulation Ltd.)

IXF IFX for FAX FAX Document

IXL DB/TextWorks Database Indexed List

IXP ISIPublisher Publication Information Export (Image Solutions, Inc.)

IXR Index+ for Windows Report Definition File (System Simulation Ltd.)

IXS ArcView Geocoding Index For Read-Write Shapefiles (ESRI)

IXT ISIPublisher Publication Template (Image Solutions, Inc.)

IXX C++ Include File

IZD Intrexx Application Export Format

IZS 1st Page 2000 JavaScript Example File (Evrsoft)

IZT IZL Binary Token

IZX Intermezzon Designer E-Learning Published File (Intermezzon Learning Systems AB)

I_I Eru/erd File

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