In need to make a video or powerpoint file for school

I have a huge project due tomorrow and I cannot complete it without getting a good grade. I need to delay it by another day or so and to do that i need to resort to being sneaky. I need a way to corrupt a powerpoint or video file that isnt infected with viruses or malware or spyware… thanks for helping out on an strange request.
Answer #1
So you want to turn in a corrupted presentation to act like you did the work that you didn’t do? Wouldn’t it be simpler to spend the time actually doing the homework instead of spending time avoiding it for one more day?
Answer #2
Just say you have it on a pen-drive and the dog ate it
Why not just do the work, it doesn’t take long to make a .ppt, I have to do them all the time for teaching students in work. You can even find loads of templates on the net if you are no good at doing animations (use Google)
Answer #3
oh sorry, i have been working on this project the past weekend. I could rush it but I wouldnt get the mark that I want.