Hey everyone! Recently I bought a Mac, and along with it, I picked up a copy of iWork for $50, as it is 30 bucks cheaper when you buy it along with a Mac. Anyways, tomorrow I have a presentation in my Spanish class about my family (it is a beginners Spanish course) and I had a choice to make a poster or a PowerPoint. Obviously I am better at technology than I am at making physical posters and art in general - so I went with the PowerPoint. It was until I was finished with making my Keynote project that I started worrying along compatibility issues. It was in the back of my mind the whole time because I read about how iWork is compatible with Office, so I was not worried about these issues. Anyways, I figured that now that I am done with my Keynote I would e-mail it to my home computer as a PowerPoint document (Share -> Mail (as PowerPoint) -> Send). So I sent the Keynote presentation as a PowerPoint to my home computer. I went on my home computer and I downloaded it from there. Now when I opened the PowerPoint file (a Keynote exported as a PowerPoint project), a window came up when Office was starting up, it was something along the lines of "Cannot open 'directory of the file' because part of the file was missing." I even tried using the Share option on Keynote where it uploads my presentation to iWork.com and then download it from my PC from there - no avail. Does anyone have any ideas as to why PowerPoint says it cannot open my Keynote presentations because "part of the file was missing," even though I am exporting my Keynotes as PowerPoint projects? Thanks in advance!