I have been working on this presentation for a while now and I finished it Saturday January 6 2019. Upon reopening my presentation in order to hand it in to my teacher, all of the content is gone. I made sure to save my presentation when I completed it so I am very confused. I am so worried that it is gone as I have put hours of work into it and as exams are approaching I do not have time to redo it.
Any help recovering it would be much appreciated.