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.
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 of the file itself to determine the file type.
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