MLX is a save file format for Starcraft, a computer game developed by Blizzard in 1998. Remastered version of the original Starcraft is available for free for Windows 10 and MacOS systems.

MLX file allow users to resume previously saved game. Starcraft is a real-time strategy game set in a sci-fi universe that offers a rich gameplay and combat system. MLX files are supported on both platforms for which the game is available.