should I upload some of these files here?

I want to edit the clothes and the skin of the npc/heroes/zombies... the thing is, i m not familiar with these type of format:.scr, .ascr, .bscr, .ber can you guys help me out? what programs give you the posibility of editing textures and clothes? http://i53.tinypic.com/o7jzf7.jpg http://i56.tinypic...