: Many versions of Dolphin itself, especially development builds, are distributed as .7z archives to save bandwidth. How to Handle 7z Files for Dolphin

: Similarly, if your games are in .7z format, right-click them and select "Extract Here" to get the usable .iso or .gcm disc image files.

A common query echoed through forums and Reddit threads in 2021: "Dolphin won't open my game. It’s a 7z file. Help!"

Dolphin version (development builds throughout 2021) did not natively support loading 7z files directly. Unlike GCZ or RVZ, a 7z file must be extracted to an uncompressed ISO or a Dolphin-readable format before execution. This limitation was crucial for users.

Dolphin Emulator (the popular Wii/GameCube emulator) cannot directly run games stored inside a .7z file . You must extract the game file first.