Computer file extensions - I
Updated: 06/30/2019 by Computer Hope
Below is a listing of each of the different file extensions that begin with the letter "I." If you are looking for a file extension that starts with a different letter, click the corresponding beginning letter below.
| I | |
|---|---|
| .ICA | Citrix file or IOCA graphics file. |
| .ICB | Targa bitmap file. |
| .ICC | Kodak printer image. |
| .ICE | Archive file. |
| .ICL | Icon library file. |
| .ICM | Image Color Matching profile file. |
| .ICN | Microsoft Windows icon manager file. |
| .ICO | 1. Microsoft Windows icon file. 2. Icondraw file. |
| .ICS | Image Cytometry Standard file. |
| .ID | Disk identification file. |
| .IDB | Microsoft developer intermediate file, used with Microsoft Visual Studio. |
| .IDD | MIDI (musical instrument digital interface) instruments definition. |
| .IDE | Integrated Development Environment configuration file. |
| .IDF | MIDI instruments drivers file. |
| .IDQ | Internet data query file. |
| .IDX | Index file. |
| .IFF | 1. IFF/LBM (Amiga) used by Computer Eyes frame grabber. 2. Interchange File Format file. |
| .IFO | DVD (digital versatile disc) information file containing information on the DVD audio, chapters, and subtitles. |
| .IGS | IGES (Initial Graphics Exchange Specification) drawing file, saved using the 2D/3D vector format. |
| .IMA | IMA file format for medical images. |
| .IMG | 1. GEM/IMG and Digital Research file 2. Ventura Publisher bitmap graphic. |
| .INF | Information file with customization options. |
| .INI | Files that initialize Windows and Windows apps. |
| .INS | Index Naming Service file. |
| .IPA | Program file for iPad, iPhone, and other iOS devices. |
| .IPD | Blackberry backup information on PC. |
| .IPF | 1. Installer script file. 2. OS/2 online documentation for Microsoft source files. |
| .ISO | Compressed file used for an exact duplicate of a CD. An .ISO file can be extracted or opened such programs as Win Image. Also, see the ISO image definition for further information and related links. |
| .IW44 | DjVu file. |
| .IWA | IBM Writing Assistant text file. |