.PLA File Extension
File Type 1ArchiCAD Project Archive
Project archive saved by ArchiCAD, a 3D modeling program used by architects; may include multiple CAD designs (.PLN files) as well as Library Parts that may be referenced by designs contained within the archive.
File Type 2Sansa Playlist File
Music playlist for a SanDisk Sansa portable media player; saved in the PLP playlist format, which lists locations of files in a standard text format; must be transferred to the PLAYLISTS folder on the Sansa device to be recognized by the player.
File Type 3iriver iQuickList File
Playlist of songs saved by an iRiver portable music player, such as the T10 or iDP-100; saved in the root folder; similar to a .M3U file used by many software audio players.
To add a song to the iQuickList, select the song and press and hold the A-B button. To remove a song, select the song in the playlist and press A-B.