Main » Quick Reference »

Data Formats and File Extensions: I

Find data formats and their file extensions starting with I.

With literally thousands of data file formats employed by Windows and Window-based apps, keeping track of all the file extensions employed by your software applications and programs can be quite a challenge. Fortunately, Webopedia's Complete List of Data File Formats and File Extensions makes it quick and easy to sift through thousands of file extensions and data file formats to find exactly what you need. You can peruse the full list or search for data formats and file extensions based on the letter they start with from the table below.

Number  Symbol  A  B  C  D  E  F  G  H  I  J  K 
L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  Full List


  Data File Formats that Begin with the Letter 'I'

.iIntermediate file (Borland C++ 4.5)
.iafMS Outlook 97 and 2000 e-mail account settings
.iaxBitmap graphics (IBM Image Access eXecutive)
.ibmCompressed file archive created by ARCHDOS (Internal IBM only)
.ibdInstaller Dialog Resource file
.ibpIsobuster Image file
.ibqIsobuster Managed Image file
.icaBitmap graphics (Image Object Content Architecture)
.icbBitmap graphics
.iccKodak Printer Image
IronCAD Catalog
.icdIronCAD 2D CAD file
.iclIcon library (ActivIcons, IconForge, ImageForge, ImageForge PRO)
.icmImage Color Matching Profile file
ICC Profile, Acer Monotor Drive
.icnIcon source code file
.icoIcon (Windows 3.x)
.icsiCalendar Calendar file
.idDisk identification file
Lotus Notes User ID file
.id2Windows Live Messenger Emoticon file
.idbDatabase Used by Disassembler
MS Developer Intermediate file
.ideProject (Borland C++ 4.5)
.idfARTiSAN Real-time Studio ID file
MIDI Instruments Drivers file
.idlMS Visual C++ Interface Definition file
OMG CORBA Interface Definition Language
.idwVector graphics (IntelliDraw)
.idxIndex (many - FoxPro)
.iesPhotometric file data
.ifdForm (JetForm Design)
.iffInterchange File Format bitmap graphics/sound (Amiga)
Maxis The Sims Object file
Philips CDI File
Sun TAAC Image File Format (SDSC Image Tool)
.ifoSaved graphic objects (ImageForge PRO)
.ifpScript (KnowledgeMan)
.ifsFractal image compressed file (Yuvpak)
System file (OS/2) hpfs.ifs
.igrIntergraph SmartSketch Drawing
.igxiGrafx Process
.iifQuickBooks for Windows Interchange file
.ilbData (Scream Tracker)
.ilkOutline of program's format (MS ILink incremental linker)
.im30Sun Raster image file
.im8Sun raster graphics
.imaMirage vector graphics (EGO, Chart, Autumn)
.imbIncrediMail file
.imcIncrediMail file
.imdCaseware IDEA (GIS data file)
.imfImageForge/IconForge saved filtered brushes(IconForge, ImageForge, ImageForge PRO)
.imgBitmap graphics (Ventura Publisher - GEM Paint)
.immIncrediMail Trash
.imnIncrediMail Notifier
.impSpreadsheet (Lotus Improv)
Impaticized PowerPoint file
.imqImage presentation (ImageQ)
.imsIncredimail Graphic
.imvYahoo Instant Messenger IMVironment
Impaticized Video format
.imwImageware Surfacer 3D CAD Surface Geometry
IncrediMail Sound
.imzCompressed floppy image
.in$Installation file (HP NewWave)
.in3Input device driver (Harvard Graphics 3.0)
.inbTest script (Vermont HighTest)
.incInclude file (several programming languages)
.indIndex (dBASE IV)
Adobe InDesign document file
.inddAdobe InDesign file format
.infType 1 LaserJet font information file (soft font installers)
Information text file (ASCII)
Install script
.iniInitialization file
.inkPantone reference fills file (CorelDRAW)
.inlMS Visual C++ Inline Function file
.inpGIS Software Text Input file
Oracle Source Code
Self-Extracting Archive Utility Project
.insData (WordPerfect)
Installation script (1st Reader)
Instrument music file (Adlib)
.intBorland Interface Units
Program saved in Internal (semi-compiled) format (Signature)
.invRogue Spear Inventory file
.inxFoxpro Index (Foxbase)
.ioCompressed file archive created by CPIO
.iob3d graphics database in TDDD format
.iocOrganizational chart (Instant ORGcharting!)
.ion4dos descript.ion file (file descriptions)
.ipaiPod/iPhone Application file
.ipdBlackBerry Backup file
InstallPROG 6 EDBS Install Database
.ipgMindjongg Format
.ipjImpatica OnCue Project file
.iplPantone Spot reference palette file (CorelDRAW)
.ippHelp & Manual Proprietary Image
.ipsGame Patch file
MENSI 3Dipsos
.ipswIPod/IPad/IPhone Software file
.ipxIPIX AV file
.ipzICQ Skin Plus
.iriIR Image file
.irsResource (WordPerfect)
.isdSpelling Checker dictionary (RapidFile)
.ishCompressed file archive created by ISH
.iskCommand file
.isoEasy CD Creator Disc Image
File List for CD-ROM
InstallShield Uninstall file
ISO Buster file
ISO-9660 Table
Vector Graphics (IsoDraw Illustration)
.isrMS Streets & Trips Route file
.issInstallShield Response file
ISS Graphic
.istDigitrakker Instrument File (n-FaCToR)
.isuInstallShield Uninstall Script
Easy CD Creator 4 Uninstall file
Netscape file
.iszAn extension on .ISO that allows compression and splitting of an archive
.itSettings (intalk)
.itc2iTunes Album Data file
.itdbiTunes Database file
.itfInterface file (JPI TopSpeed Pascal)
.ithInTether technology secured file
.itlMusic Library file
.ivOpenInventor files (the successor to Inventor)
.ivasecurity video data file
.ivtMS Infoviewer Title
.iwPresentation flowchart (IconAuthor - HSC InterActive)
.iwaText file (IBM Writing Assistant)
.iwdCall of Duty Game Data file
.iwpText file (Wang)
.iztIzl binary token file (IZL)

Recommended Reading: An Introduction to Data File Formats and Their File Extensions

Number  Symbol  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  Full List


Texting & Chat Abbreviations

From A3 to ZZZ this guide lists 1,500 text message and online chat abbreviations to help you translate and understand today's texting lingo. Read More »

List of Well-Known TCP Port Numbers

Port numbers 0 to 1024 are reserved for privileged services and designated as well-known ports. This list of port numbers  are specified in... Read More »

Computer Architecture Study Guide

Computer architecture provides an introduction to system design basics for most computer science students. Read More »

Network Fundamentals Study Guide

Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »

The Five Generations of Computers

Learn about each of the five generations of computers and major technology developments that have led to the computing devices that we use... Read More »