directly putting skins in war3.mpq

How do u directly put skins into war3.mpq. I cant get it to work right. It always over rights everything on the mpq i am confused.

Don't do this!
This will screw up your War3, and you won't be able to play on battle.net and to restore this only reinstalling War3 will work.
Add them to the maps, it's safer and faster. (Just use WinMPQ)

dont worry i made copys but i thought it would be easyer to just insert them rather than having to do them to every map oh well