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File Extensions beginning with the letter 'I'


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Extension click to sort by Extension Description currently sorted on Description Format MIME Type
isp
icw
isa
int
IBM Writing Assistant
iqy
IRTP Graphicon-2000 Interactive Real-Time PHIGS
IMJ Image JPEG
INGR Intergraph Raster File Format
IM Performer
IV SGI Inventor
IMA Zenographics Mirage Graphics File Format
INK (1) Bitmap Picture; Cross Pad XP handheld digital notepad
IGF (1) Bitmap Picture; Hijack graphics Bitmap
INS (1) Configuration; Internet Communications Settings; see ISP (MIME: application/x-internet-signup)
INT (1) Delphi Pascal; Delphi Interface (Include file)
ICC (1) ICC Profile; International Color Consortium profile for printers, printers, scanners, based on Apple ColorSync 2.0; see ICM, PF
IDB (1) MDPX file for Microsoft Developer Network
IDX (1) Microsoft Outlook Express Index
INF (1) Setup Information; If "AUTORUN.INF", an auto-start CD-ROM
IND (1) Windows 98 Application access and usage log, used for disk maintenance; see LGn
INF (2) Adobe Type Manager Font information
INT (2) Code page and collation sequence (FoxPro)
IDX (2) Corel QuickFinder Information
ICC (2) IBM C++ Incremental C++ Configuration for a programming project; see ICS
IND (2) Index
IDB (2) Inprise (Borland) Delphi Pascal Object file; see DCR, DCU
INK (2) Pantone Color information; Corel Draw
INS (2) Sound; AdLib music
IDX (3) FoxPro Index
INS (3) Sound; Ensoniq Instrument
ILBM A bitmap (graphic image) file
IV A file format used in Open Inventor
indb Adobe InDesign Book. A metafile for multiple InDesign documents (see .INDD).
indd Adobe InDesign Document
INFO Amiga
ISH Archive
IO Archive; CPIO
INC Assembler language or Active Server include file
IC? Atari ST
IVD Beyond 20/20 microdata dimension or variable-level file
IVX Beyond 20/20 microdata directory file
IVT Beyond 20/20 table or aggregate data file
IVP Beyond 20/20 user subset profile file
IL Bitmap Picture; hDC Computer Icon Library
IAX Bitmap Picture; IBM Image Access Executive
ICA Bitmap Picture; IBM IOCA Bitmap Picture
INDIGO Bitmap Picture; Indigo Graphics
ILBM Bitmap Picture; Interleaved Bitmap Picture
IM8 Bitmap Picture; Sun
IOC Chart; Instant ORGcharting
ICF Cheyenne AntiVirus
ICA Citrix file
IPL Color Palette; Corel Draw; Pantone
INI configuration files
INI Configuration Settings
ISP Configuration; Internet Communications Settings; see INS, ICW (MIME: application/x-internet-signup)
idx database index file
INX Database; FoxBase index
IST Digitaltracker instrument file
IWA Document; IBM Writing Assistant
IAF Document; Interleaf Publisher
IWP Document; Wang Document; see DOC
INS Ensoniq EPS family instrument
IOF Findit document
img GEM raster image. Details
INI Gravis UltraSound bank setup
ICS IBM C++ Code store project information, used like MAK; see ICC
IFS IBM OS/2 System
iwa IBM Writing Assistant document
ICM ICC Profile; Image Color Matching Profile (like ICC); see PF
ICM ICM profile
ICO Icon
ICO Icon
ICL Icon Library (multiple icons of different resolutions)
ICL Icon Library file (an industry standard)
ICN Icon; SunOS
ICO Icon; Windows Icon
IW Idlewild screensaver
ICB Image Capture Bitmap. Raster image in Targa format (usually TGA extension).
ICM Image Color Matching profile file
ITI Impulse Tracker instrument
IT Impulse Tracker music module (MOD) file
ITS Impulse Tracker sample
inc include file
INC Include; Assembly language header; see EQU, HSM
ILK Incremental Link Information; Microsoft Visual C++
ILD Indented Line Database. Details
INF Information file
IGES Initial Graphics Interchange Specification. Details
ini initialization file
INI Initialization file
INI Initialization file (configuration settings)
INL Inline Function Definitions(Microsoft Visual C++); C++ Inline code (like H, but can include code)
IDE Inprise (Borland) C++
INRS INRS-Telecommunications audio
IGF Inset Systems metafile
ins install file
IWZ Install Shield Template for creating software setup wizards
IWC Install Watch document
INS InstallShield install script
ISS InstallShield Silent
isu InstallShield uninstall information file
ISU InstallShield uninstall script
III Intel I-Phone Compatible, Internet Telephony; see 323 (MIME: application/x-iphone)
IFF Interchange File Format. Can contain audio and/or images (or pretty much anything). Details.
idl interface definition language
IDL Interface Definition Language (Microsoft Visual C++)
INT Intermediate Code, an executable code produced when a source program is syntax-checked
ILD International Laser Display. Control file for a laser lightshow. Details
IDQ Internet Data Query file
ITS Internet document set (possibly a Microsoft file)
ITS Internet Explorer Document Set; see HTM
ica IOCA bitmap
ISO ISO 9660 disk image. An exact image (i.e. no compression or such like) of a CD-ROM.
IFD JetForm Design
IFP Knowledge Man
ICC Kodak printer format
ICN Micrografx
ID Microsoft Data Map (common?); also MAP, DAT
IDX Microsoft FoxPro relational database index file
ICW Microsoft Internet Explorer Internet Connect Wizard
IQY Microsoft Internet Inquiry file
IQY Microsoft Office 97 Internet Query
IDX Microsoft Outlook Express file
IN_ Microsoft Setup information (not compressed-text)
IVT Microsoft-proprietary InfoViewer Title. Utility to convert ivt to html.
IDF MIDI file definition
IDF MIDI Instrument Definition
IDD MIDI Instrument Definition
IDF MIDI instrument definition
IDF MIDI Instrument Definition (Windows 95 required file)
IDB MSDev 'intermediate' file
IVI MSDN (Microsoft Developer's Network) InfoViewer 5.0 topic
IVQ MSDN InfoViewer 5.0 index for full-text searches
ico MSWindows Icon
inf MSWindows setup information file
INI MWave DSP synth's mwsynth.ini GM-setup
INP Oracle source code for form, version 3.0 and earlier
IEF Picture; Image [] image/ief
IML Picture; Inprise (Borland) Delphi Games Creator Image Library; CRL, MAP, SDL
ISFF Picture; Intergraph Standard File Format
IVU Picture; IVUE Live Picture Drawing
IEEE-695 PostScript Document; Hewlett-Packard IEEE 695 Information
I Preprocessed C++ compiler code for Intel VTune; use the Microsoft C++ compiler switch /E to create the listing.
IMQ Presentation; Image-Q
ICC Profile
ICM Profile
IP Profile
ini Program Information File
IIF QuickBooks for Windows interchange file
INS Sample Cell/II MAC/PC instruments
INF setup files
INF Setup information
INF setup information
ICE Sound,; CoolTalk -- Internet communications
IDD Sound; MIDI instrument definition
IT Sound; Official Impulse Tracker; see MOD, MID
I3 Source Code; Modula 3
IMP Spreadsheet; Lotus Improv
IDC SQL script used with HTX files
im Sun image
IDX Symantec Q&A relational database index file
ISU Un-install Script for InstallShield and Windows 95 UNINST.EXE
IDW Vector Drawing; IntelliDraw
IMA Vector Drawing; Zenographics image
IVF Video (MIME: video/x-ivf)
IV VRML -Inventor VRML Format
iwp Wang PC
inf Windows Hardware Info File
ICO Windows Icon
ICO Windows Icon
icn Windows Icon File
ico Windows Icon File
IMA WinImage file
ISP X-Internet sign-up file
INS X-Internet sign-up file


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