.AT3 File

The at3 file extension is associated with Airport Tycoon 3, a business simulation computer game, developed by the InterActive Vision and released in 2003.

The at3 file contains saved game positions.

Files with at3 file extension can be found as saved game positions from Airport Tycoon 3 business simulation game.

How to open:

This type of game files can be only loaded in their respective games.

How to convert:

Save game files usually cannot be converted.