Use a tool like 7-Zip or WinRAR to extract the contents.
Loadiine expects a specific folder path on your SD card: SD:/wiiu/games/Mario Kart 8 [AMKE01]/ (The base game) MK8-USA-DLCs-LOADIINE-ZIPERTO.rar
If you are using the Cemu Emulator , you can install this DLC by selecting File > Install game title, update, or DLC and navigating to the meta.xml file within the extracted DLC folder. Use a tool like 7-Zip or WinRAR to extract the contents
To use these files, you generally need a Wii U with homebrew access. Because Loadiine runs decrypted files from an SD card, the setup usually follows this structure: Because Loadiine runs decrypted files from an SD
This specific DLC pack is intended for the original Wii U version . If you are looking for tracks for Mario Kart 8 Deluxe on the Nintendo Switch, these files will not work.
SD:/wiiu/games/Mario Kart 8 [AMKE01]/aoc/ (The DLC files go here)
Loadiine is considered an older method of playing backups. Most users now prefer WUP Installer GX2 to install games directly to the Wii U menu or USB storage, as it offers better loading speeds and online compatibility.