You need to have a Google Document account before continuing.
Step 1. log on to Google Documents, https://docs.google.com/presentation/u/0/
Step 2. select Slides, located in the upper left corner of the screen.
Step 3. select open file picker, it is the icon that looks like a file folder on the right side of the screen.
Step 4. select Upload, from the pull down menu at the top of the screen.
Step 5. select Select File From Your Device, located in the center of the screen.
Step 6. Locate the Power Point Document you would like to convert.
Step 7. select Open, the will begin to upload.
Step 8. At this time you may edit the new set of slides.
Step 9. At this time you may view you new set of slides.
Step 10. Your converted presentation should now be listed within your Google Documents.