If the file is zipped and not rarred (whatever its called I don't use it), there a freeware version of WinZip, but its not called WinZip it called FreeZip you can find it here http://www.ploty.com/freezip/
Ok, I tried the free zip and it seems to be working better. How do I play the map (It was Pandarens 0.6)? I looked in all the folders and couldn't find it. Do I tell it to extract to a certain location? Or maybe I missed it...
*Still feeling stupid, being amongst millions of other computer nerds who are far more nerdy than me...)
In your Warcraft-directory should be a folder called "maps". Extract your map there, then simply start Warcraft, go to -> Singleplayer -> Custom Game and select your map from the list (you should be able figure out how to start your map)
That was really wierd. Didn't work that way, so I re-downloaded it. This time it was twice the size as the other, and the thing realized there were actually documents in it this time. Huh. I wonder if I even needed to download FreeZip; WinZip might have worked fine. Oh well. Thanks Everybody. (Now playing this map while downloading 50 others )