chilly shale
Export game save from Memcard with the homebrew app, GCMM, as .gci file.
https://oscwii.org/library/app/gcmm
Use Dolphin to create a memory card (.raw file), then use dolphin’s memory card manager to import the .gci file into the memory card raw file. Copy that file to root://saves/XXXX.raw. Replace the XXXXs with the first 4 characters of the GAMEID. Then make sure your game loader has Nintendont memory card emulation set to Individual. and that should be it