So, yeah. Apple's iWork Keynote 09'. So can Keynote save your presentation into .pptx file format? Oh yeah, also after I finished my keynote and I want to open my file in a PC, and begin my presentation, so will the animations and the whole/some-part of my presentation slides got deformed for examples letters co-ordinations all misplaced, shown in a language that's non-understandable, or it just cant open out in Microsoft PowerPoint? Thanks~ Hoping you guys can solved my problems as soon as possible!