Open file explorer, go to documents, create a folder called dolphin backups. IN that create a folder like month day year. Go back to your documents and copy dolphin emulator and paste it into the date folder.
When it finishes open dolphin and hit config, gamecube change all memory cards to gci folder. If no saves are transferred use tools, memory card manager to convert to gci.
When it finishes open dolphin and hit config, gamecube change all memory cards to gci folder. If no saves are transferred use tools, memory card manager to convert to gci.