I'm a new mac user (Macbook one month old) switching from a 18 year WinP user. I have a Fat32 external drive conneted with my pc files backed up. I was looking for an image viewer for mac that rivaled irfanview for pc's. I found Xee which comes pretty close. I don't have The Unarchiver installed. When I installed Xee it took over association of .rar and .7z files. I uninstalled and reinstalled xee three times and it keeps doing it. Those formats aren't even in Xee's preference format tab. Can this be stopped?