There is a Program Called Sprite Extractor which extracts MUGEN Char's Sprites Sheet but it is useless to char makers because it saves images to RGB/8bit color but we need images in 256 color so i am giving you guys a task can you make it to save Sprites in 256 colors.
Sprite Extractor:
ASU.zip
This is a example of Sprite Sheet:
If need any more info then post below i will give more info.