File extensions that begin with I.
Ext. Type of file
ICA IBM MO:DCA - IOCA bitmap
ICB TARGA bitmap
ICC ICC color profile
ICO Windows icon
ICS Calendar
IDC Internet Database Connector
IDD MIDI instrument definition
IDE Development environment config.
IDX FoxBase index
IFO DVD content description (info)
IFF Amiga bitmap
IGF Inset Systems (Hijaak)
raster & vector graphics
IGS 2D/3D vector image (IGES)
IL Icon library (hDC Computer)
IMG ISO 9660 CD-ROM image
IMG Mac image
IMG GEM Paint bitmap
INF Setup information
INI Initialization
IPA iPhone app
ISC Invisible Secrets encrypted
ISO ISO 9660
ITL iTunes Library