There's a file extractor which seems to be able to handle WoW's files at;
http://www.slunecnice.cz/product/Extractor/

but the shareware version's limited to 30 files a go, and I don't know what I'm doing anyway :rolleyes:

When you soar into the air in a Sopwith scout
And you're scrapping with a Hun and your gun cuts out
Well, you stuff down your nose till your plugs fall out
'Cos you haven't got a hope in the morning!