Won’t let me Share this Full PowerPoint

I created a PowerPoint to honor my late father for his Birthday. I collected 64 short stories about him (he would have been 64 on February 19th). It pulls up for me no problem, but I have tried emailing it to my mother and some of his friends and it won’t download all the way for them. This is really frustrating and I desperately need some help with it!

Please note that the presentation doesn’t include any pictures or videos and it appears to already be compressed, so I just don’t know what I am doing wrong.