Instructions
Open the Xbox Save Manager using its shortcut icon in your "Start" menu.
Click "Connection Manager." Click the name of your Xbox 360 from the column on the left side of the screen. Click "Apply." The "Connection Manager" window will close and the main Save Manager window will return, displaying information about your Xbox 360.
Look at the column on the left side of the screen labeled "Xbox." This column contains one entry for each of the game saves on your Xbox 360. To transfer a save from your Xbox 360 to your PC, click on its name and drag it over into the column on the right side of the window, labeled PC.
Transfer a save from your PC back to your Xbox 360 by clicking on it in the PC column and dragging it back over into the column labeled Xbox.