FileInfo.com


.ICON File Extension


File Type Icon Image File
File Format File
Common? No
File Description Contains image data for a computer icon used to represent files, folders, applications, etc; typically saved as small square bitmap image ranging from 16x16 to 256x256 pixels in size.

Most Windows Icon files use the .ICO extension; Macintosh Icon files use the .ICNS extension.
Program(s) that open icon files Mac: Apple Icon Composer; Adobe Photoshop (with Iconfactory IconBuilder plugin); GIMP
Windows: Icon Craft; IconoMaker; Icon Processor; Perfect Icon; Adobe Photoshop (with Iconfactory IconBuilder plugin); GIMP
Unix: GIMP

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/icon