How do i do this?

How do i do this?

i have the warcraft image extractor but when i open a extracted skin to edit it my editing program shows a black screen HELP ME PLZZZZ!!!

Maybe after you extract it, it still on .blp format. try to change the format into .bmp or any athore format that supported by your image editing program. use blp converter or wc3 viewer. wc3viewer can extract and also convert .blp