How to Open a PPT File Without Powerpoint. Microsoft PowerPoint is on over a billion computers worldwide, according to Robert Gaskins, one of the program's developers. So it's likely you'll come ...

It's not just a matter of change for its own sake -- alternative presentation programs have different visual options and approaches, which means your presentations might be more compelling as well.

Is Keynote the best presentation package for Mac? We try PowerPoint and some alternatives you may not be familiar with.