How Do i Apply Skins?

[WC3_map_fan]

i dont know how to use skins? i think i know what they are: i think they are the different colours or 'skins' that a model file can have but i dont know how to apply these skins to that model??? please tell me how to apply these skins to a model in the world editor.

 

[esb]

Here is a tutorial about skinning
http://world-editor-tutorials.thehelper.net/skinning.php

 

[PurgeandFire]

Here is a more detailed tutorial by Archian:
Skins - Import a Skin -- by Archian