These tools let you look inside a WBFS file to extract specific files (like music or textures) without extracting the whole game.
Dolphin is arguably the most advanced emulator in existence. It can play Wii games at 4K resolution with anti-aliasing, texture packs, and even keyboard/mouse controls.
Drastically reduces file size; bypasses the 4GB FAT32 limit (via automatic splitting); recognized by all major homebrew loaders.