| You extract it from the map file (w3m, w3x)
When you open it, there will be multiple files.
The spell one is war3map.w3a [war3map.w3 abilities]
I would suggest backing up a map before editing it's files.
To put it back in, after you make some changes, all you have to do is delete the old file in the map, and then import the edited one [with your MPQ program] |