Hey guys, here is my Editor for MLB 2K13, enjoy :P
HOW TO USE:
EDITOR:Code:1. Extract the Save or the file inside the Save 2. Open the Save into the Editor 3. Mod What you want and press Save 4. Replace the Save back onto your USB or back into your Save file 5. Rehash/Resign 6. PLAY!!!
Thanks to feudalnate for PackageIO
Thanks to Mad Maurdigan for supplying the saves