Mr. Murphy had a suggestion for those of you without Power Point on your computers. He said it works for phones & tablets since it's an app, but it might work for computers as well. Best part? It's free.
It's called "documents to go." Do a Google search for it, see which one will work best for you, & download it. I did the search and a bunch came up. With it, you can read power points in Engrade.
I hope this is helpful!