|File extension||.ar, .hrq, .har, .harq|
| File extension
AR is the ancestor of LHA. The latest version of AR is modified by Terran Melconian.
AR is different from unix archive(created by binutils). To avoid the collision, the author thought he should name AR HAR after his name. So AR is sometimes called HAR with .hrq extension(extension .har and .harq is also used temporally).