I should also probably mention in this thread that you need to rename it to (listfile) with the parenthesis and the lowercase 1 word style. Then drag it into the patch.mpq (if using winMPQ which I suggest) press F5 and there you go.
How to use listfiles in WinMPQ:
Go to the Options. There is a File Lists tab, where you can add listfiles. After adding a listfile, open the MPQ you want to. If the files of the MPQ are listed, they are no longer unknown.