1995 Apple Icon Image Format Image (Raster) The Apple Icon Image Format is the icon format used by Apple's Mac family of Operating Systems. 1 Digital Preservation Department / The National Archives 09 Aug 2018 09 Aug 2018 fmt/1185 PUID icns File extension 1566 Apple Icon Image Format BOF: icns{4}(ICON|ICN#|icm#|icm4|icm8|ics#|ics4|ics8|is32|s8mk|icl4|icl8|il32|l8mk|ich#|ich4|ich8|ih32|h8mk|it32|t8mk|icp4|icp5|icp6|ic07|ic08|ic09|ic10|ic11|ic12|ic13|TOC |icnV) - This list is based on the list found on Wikipedia and may need to expand over time: https://en.wikipedia.org/wiki/Apple_Icon_Image_format 1 Absolute from BOF 0 0 69636E73{4}(49434F4E|49434E23|69636D23|69636D34|69636D38|69637323|69637334|69637338|69733332|73386D6B|69636C34|69636C38|696C3332|6C386D6B|69636823|69636834|69636838|69683332|68386D6B|69743332|74386D6B|69637034|69637035|69637036|69633037|69633038|69633039|69633130|69633131|69633132|69633133|544F4320|69636E56)