A is a compressed version of a Wii U disc image (WUD) used primarily for emulating The Legend of Zelda: Breath of the Wild on PC using Cemu . While standard Wii U disc images are always 23.3 GB, a WUX file removes the "empty space" on the disc, reducing the game's size to roughly 13 GB for Breath of the Wild . Core Technical Details
Breath of the Wild is a large game. Converting a WUD to WUX can save a significant amount of space (often several gigabytes) without losing any game data or quality. botw wux file
file in its root directory containing the specific "Title Key" for the game and the Wii U "Common Key". Updates and DLC A is a compressed version of a Wii