Using a allows for extensive customization:
Max out skills like Small Guns, Lockpick, Science, and Medicine to 100 instantly. fallout 3 xbox 360 save editor
To edit an Xbox 360 save, you cannot simply plug a USB drive into your PC and open a notepad. Xbox 360 saves are hashed with a console-specific "Profile ID" and "Device ID." You need software to resign the save. Using a allows for extensive customization: Max out