Editing AmigaDOS (section)

==Filename extensions==
AmigaDOS has only a single mandated filename extension: ".info", which must be appended to the filename of each icon. If a file called '''myprog''' exists, then its icon file must be called '''myprog.info'''. In addition to image data, the icon file also records program [[metadata]] such as options and keywords, its own position on the desktop (AmigaOS can "snapshot" icons in places defined by the user), and other information about the file. Directory window size and position information is stored in the ".info" file associated with the directory, and disk icon information is stored in "Disk.info" in the root of the volume.

With the exception of icons, the Amiga system does not identify file types using extensions, but instead will examine either the icon associated with a file or the binary [[header (computing)|header]] of the file itself to determine the file type.