Ext.
|
Description
|
Used by
|
I
|
Preprocessor output file
|
Borland C Preprocessor
|
IAK
|
Internet Access Kit
|
OS/2
|
IAM
|
Assembly file
|
Autodesk Inventor
|
IAX
|
Bitmap graphics (IBM Image Access eXecutive)
|
|
IAX
|
data
|
InstallAnywhere.NET project
|
IBG
|
PDS graphic file
|
|
IBM
|
Archive (Internal IBM only)
|
ARCHDOS
|
ICA
|
Bitmap graphics (Image Object Content Architecture)
|
|
ICB
|
Bitmap graphics
|
|
ICC
|
ICC configuration
|
|
ICE
|
Archive
|
Cracked LHA (old LHA)
|
ICM
|
ICC configuration
|
|
ICN
|
ICON source code file
|
|
ICO
|
Icon file
|
ICONEDIT.EXE; Microsoft Windows
|
ID
|
Disk identification file
|
|
IDB
|
IDA database
|
IDA
|
IDB
|
VC++ Minimum Rebuild Dependency File
|
Visual C++
|
IDC
|
IDA C language source
|
IDA
|
IDE
|
Borland C++ 4.x IDE project
|
BCW.EXE
|
IDF
|
MIDI instrument description
|
|
IDS
|
IDA imported names format
|
IDA
|
IDW
|
Vector graphics
|
IntelliDraw
|
IDW
|
Drawing file
|
Autodesk Inventor
|
IDX
|
Index
|
many - FoxPro; also unrelated Quicken file format.
|
IFD
|
Form
|
JetForm Design
|
IFF
|
Interchange Format File (IFF)
|
EA Software - Convert (C) Villena - Amiga
|
IFF
|
Sun TAAC Image File Format
|
SDSC Image Tool
|
IFP
|
Script
|
KnowledgeMan
|
IFS
|
Fractal image compressed file
|
Yuvpak
|
IFS
|
Iterated fractal system file
|
IFS Creation Kit, Apophysis
|
IFS
|
Installable file system
|
OS/2
|
IGES
|
Initial Graphics Exchange Specification
|
|
IGF
|
Inset Systems
|
GCGW
|
IGC
|
Flight tracks downloaded from GPS devices in the International Gliding Commission's prescribed format
|
|
IHP
|
Watcom help file
|
whelp.exe
|
IHS
|
Inbound History
|
Bink/+
|
IIW
|
Power Point Image Importer Wizard
|
|
IL
|
hDC Designer Icon Lin dll format
|
|
ILB
|
Data
|
Scream Tracker
|
ILG
|
data
|
LaTeX Index Generation log
|
ILK
|
Outline of program's format
|
Microsoft ILink incremental linker
|
IM
|
Auran Jet indexed mesh file
|
Trainz
|
IM8
|
Sun raster graphics file
|
|
IMA
|
Mirage vector graphics
|
EGO - Chart - Autumn
|
IMG
|
ADEX graphic file
|
|
IMG
|
Disk Image
|
NC 5.0
|
IMG
|
GEM bitmapped graphics file
|
Ventura
|
IMG
|
Image for Windows/Image for DOS Disk image
|
TeraByte, Inc. dba TeraByte Unlimited
|
IMG
|
Vivid IMG file
|
|
IMI
|
image
|
Magellan Meridian map
|
IMI
|
image
|
Magellan eXplorist map
|
IMP
|
Spreadsheet
|
Lotus Improv
|
IMQ
|
Image presentation
|
ImageQ
|
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
|
Data Index
|
dBASE IV
|
INDD
|
InDesign Document
|
Adobe InDesign
|
INF
|
Information text file (ASCII)
|
|
INF
|
Install script
|
|
INF
|
OS/2 hypertext help system file
|
VIEW.EXE
|
INF
|
Type 1 LaserJet font information file
|
soft font installers
|
INFO
|
GNU info reader (output from Texinfo)
|
info (Unix)
|
INFO
|
Icon Data (Amiga)
|
|
INGR
|
Intergraph Raster File Format
|
|
INI
|
Initialization file
|
|
INK
|
Pantone reference fills file
|
CorelDRAW
|
INS
|
Data
|
WordPerfect
|
INS
|
Ensoniq Instrument File
|
Ensoniq
|
INS
|
Installation script
|
1st Reader
|
INS
|
Instrument music file (Adlib)
|
|
INT
|
Borland Interface Units
|
|
INT
|
Program saved in Internal (semi-compiled) format
|
Signature
|
INT
|
Source of Borland interface module
|
|
INX
|
Index
|
Foxbase
|
IO
|
Archive
|
CPIO
|
IOB
|
3d graphics database in TDDD format
|
|
IOC
|
Organizational chart
|
Instant ORGcharting!
|
ION
|
4DOS descript.ion file (file descriptions)
|
4DOS
|
IP
|
Immortal Player file
|
Immortal Player
|
IPC
|
Intellitec Program Configuration - used to configure vehicle electronics
|
Intellitec
|
IPF
|
Interchangeable Preservation Format
|
SoftPres
|
IPG
|
iPod game file
|
iTunes and iPod
|
IPH
|
Hi-Res Image
|
InterPaint
|
IPL
|
Pantone Spot reference palette file
|
CorelDRAW
|
IPN
|
Intecplan project
|
Intecplan Business Plan Software
|
IPS
|
IPS Patching Format (International Patching System)
|
Rom hacking community
|
IPT
|
Part file
|
Autodesk Inventor
|
IPT
|
MultiColor Image
|
InterPaint
|
IRS
|
Resource (WordPerfect) standard.irs
|
WordPerfect
|
IRT
|
Data
|
IRIT 3D model
|
IRTR
|
Graphicon-2000 Interactive Real-Time PHIGS
|
|
ISD
|
Spelling Checker dictionary
|
RapidFile
|
ISH
|
Archive
|
ISH
|
ISMA
|
Output Video file
|
Islam Abusa'a Software
|
ISO
|
ISO-9660 table
|
see: List of ISO image software
|
IST
|
Digitrakker Instrument File
|
AWAVE
|
IT
|
Impulse Tracker music file
|
Impulse Tracker
|
IT
|
Settings
|
intalk
|
ITF
|
Interface file
|
JPI TopSpeed Pascal
|
ITL
|
iTunes music library
|
|
ITN
|
Itinerary file
|
TomTom PNDs
|
ITT
|
IconTweaker Theme
|
|
IV
|
SGI Inventor
|
|
IV-VRML
|
Inventor VRML Format
|
|
IVE
|
OpenSceneGraph 3D model
|
|
IVI
|
Image file
|
ImmerVision
|
IVL
|
Lensflare file
|
ImmerVision
|
IVP
|
Panorama file
|
ImmerVision
|
IVU
|
User Interface file
|
ImmerVision
|
IW
|
Presentation flowchart
|
IconAuthor - HSC InterActive
|
IWA
|
Text file
|
IBM Writing Assistant
|
IWB
|
Information WorkBench
|
Prodeo
|
IWD
|
Call of Duty Map - Game Data Archive
|
Activision, Inc.
|
IWP
|
Text file
|
Wang
|
IX
|
data
|
dtSearch index
|
IZT
|
Izl binary token file
|
IZL
|
