I just got my Mac and am trying to move all my photos over from my old PC. The PC keeps frying any external storage I hook to it so I had to upload all 18+ GB of pictures to my Windows Live SkyDrive. Now when I download them it comes in a .zip file and my Mac can't open them. I have tried the built in unarchive tool, The Unarchiver, Stuffit, and zipeg and none of them can do it. Any advice on what I should do?