Things You'll Need
Instructions
Insert an SD card into the SD card slot of your GameCube memory card adapter.
Insert the memory card adapter into an available memory card port on the front of your GameCube.
Play a GameCube game and save the game's file to the slot containing your adapter.
Turn your GameCube off when you are done playing. Remove the memory card adapter from the GameCube, and remove the SD card from the adapter.
Insert the SD card into your computer. If your computer does not have an SD card slot, you will need to insert the card into a USB memory card reader, and connect the reader to an available USB port on your PC.
Select the "Open Folder to View Files" option on your SD card's auto-play menu. This will open a window for your SD card.
Select the GameCube save file in the SD card window with the mouse, and drag it to your computer desktop.