Converting a 7z file to WBFS (Wii Backup File System) is a two-step process because 7z is a compressed archive format, not a game file. To get a playable WBFS file for your Nintendo Wii, you must first extract the game data (usually an ISO or NKIT.ISO) from the 7z archive and then convert it using a dedicated manager. Step 1: Extract the 7z Archive
Disk Space: Ensure you have enough room for both the original 7z, the extracted ISO (up to 4.7GB), and the final WBFS file. RVZ to WBFS for Nintendo Wii on Windows 7z to wbfs converter
MarioKartWii.7z.7-Zip > Extract to "MarioKartWii\".MarioKartWii.iso.Files > Add > Select the MarioKartWii.iso.Transfer tab.WBFS Files (not ISO).F:\wbfs).Transfer.