DXT is a secure game file format used by LucasArts. Files with DXT extension are typically found in Monkey1 files with PAK suffix. DXT files are associated with The Secret of Monkey Island: Special Edition video game, which is a remake of the original The Secret of Monkey Island.

DXT files store game data and are only compatible with Microsoft Windows. The game debuted in 2009 at Electronic Entertainment Expo and was also released for Xbox game console.