I have a friend who is transitioning from Windows to OSX - she's a heavy MS Office 2013 user. Her biggest fear is that the files generated will not be compatible with the rest of her office's Win8 Office 2013 files, so I am recommending that she try to run the Windows MS Office 2013 version on a Mac. She currently prefers a 2014 13" MBA over a rMBP for portability. 1. How well does Outlook, Excel, and Word run on a 2014 13" mba? I mean in terms of speed. In particular, I'm wondering if 4GB is sufficient. 2. Is Parallels sufficient or is Bootcamp necessary? 3. Any problems or issues with file compatibility if she runs the Windows version of MS Office 2013?