Data Formats and Their File Extensions -- I

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

.i Intermediate file (Borland C++ 4.5) .iaf MS Outlook 97 and 2000 e-mail account settings .iax Bitmap graphics (IBM Image Access eXecutive) .ibm Compressed file archive created by ARCHDOS (Internal IBM only) .ica Bitmap graphics (Image Object Content Architecture) .icb Bitmap graphics .icc Kodak Printer Image IronCAD Catalog .icd IronCAD 2D CAD file .icl icon library (ActivIcons, IconForge, ImageForge, ImageForge PRO) .icm Image Color Matching Profile file ICC Profile, Acer Monotor Drive .icn Icon source code file .ico Icon (Windows 3.x) .id Disk identification file .idb Database Used by Disassembler MS Developer Intermediate file .ide Project (Borland C++ 4.5) .idf ARTiSAN Real-time Studio ID file MIDI Instruments Drivers file .idl MS Visual C++ Interface Definition file OMG CORBA Interface Definition Language .idw Vector graphics (IntelliDraw) .idx Index (many - FoxPro) .ies Photometric file data .ifd Form (JetForm Design) .iff Interchange File Format bitmap graphics/sound (Amiga) Maxis The Sims Object file Philips CDI File Sun TAAC Image File Format (SDSC Image Tool) .ifo Saved graphic objects (ImageForge PRO) .ifp Script (KnowledgeMan) .ifs Fractal image compressed file (Yuvpak) System file (OS/2) hpfs.ifs .igr Intergraph SmartSketch Drawing .igs IGES-Format .igx iGrafx Process .iif QuickBooks for Windows Interchange file .ilb Data (Scream Tracker) .ilk Outline of program's format (MS ILink incremental linker) .im30 Sun Raster image file .im8 Sun raster graphics .ima Mirage vector graphics (EGO, Chart, Autumn) .imb IncrediMail file .imc IncrediMail file .imd Caseware IDEA (GIS data file) .imf ImageForge/IconForge saved filtered brushes(IconForge, ImageForge, ImageForge PRO) .img Bitmap graphics (Ventura Publisher - GEM Paint) .imm IncrediMail Trash .imn IncrediMail Notifier .imp Spreadsheet (Lotus Improv) Impaticized PowerPoint file .imq Image presentation (ImageQ) .ims Incredimail Graphic .imv Yahoo Instant Messenger IMVironment Impaticized Video format .imw Imageware Surfacer 3D CAD Surface Geometry IncrediMail Sound .imz Compressed floppy image .in$ Installation file (HP NewWave) .in3 Input device driver (Harvard Graphics 3.0) .inb Test script (Vermont HighTest) .inc Include file (several programming languages) .ind Index (dBASE IV) .indd InDesign document file .inf Type 1 LaserJet font information file (soft font installers) Information text file (ASCII) Install script .ini Initialization file .ink Pantone reference fills file (CorelDRAW) .inl MS Visual C++ Inline Function file .inp GIS Software Text Input file Oracle Source Code Self-Extracting Archive Utility Project .ins Data (WordPerfect) Installation script (1st Reader) Instrument music file (Adlib) .int Borland Interface Units Program saved in Internal (semi-compiled) format (Signature) .inv Rogue Spear Inventory file .inx Foxpro Index (Foxbase) .io Compressed file archive created by CPIO .iob 3d graphics database in TDDD format .ioc Organizational chart (Instant ORGcharting!) .ion 4dos descript.ion file (file descriptions) .ipd InstallPROG 6 EDBS Install Database .ipg Mindjongg Format .ipj Impatica OnCue Project file .ipl Pantone Spot reference palette file (CorelDRAW) .ipp Help & Manual Proprietary Image .ips Game Patch file MENSI 3Dipsos .ipx IPIX AV file .ipz ICQ Skin Plus .irs Resource (WordPerfect) .isd Spelling Checker dictionary (RapidFile) .ish Compressed file archive created by ISH .isk Command file .iso Easy CD Creator Disc Image File List for CD-ROM InstallShield Uninstall file ISO Buster file ISO-9660 Table RichWin Vector Graphics (IsoDraw Illustration) .isr MS Streets & Trips Route file .iss InstallShield Response file ISS Graphic .ist Digitrakker Instrument File (n-FaCToR) .isu InstallShield Uninstall Script Easy CD Creator 4 Uninstall file Netscape file .isz An extension on .ISO that allows compression and splitting of an archive .it Settings (intalk) .itf Interface file (JPI TopSpeed Pascal) .ith InTether technology secured file .iv OpenInventor files (the successor to Inventor) .iva security video data file .ivt MS Infoviewer Title .iw Presentation flowchart (IconAuthor - HSC InterActive) .iwa Text file (IBM Writing Assistant) .iwp Text file (Wang) .izt Izl binary token file (IZL)