It's a file loaded down with pictures for my company, sent to me on DVD. What possessed them to put it in a powerpoint presentation, I will never know.
To answer the questions, yes, I've got the latest version of OpenOffice, and the file has been attempted to be opened on both a Mac and a PC with the same results of total application hanging.
I finally got onto a PC with Office on it and loaded the file. It took 20 minutes for it to open, and it's rendered the computer nearly useless while the file is open: 582 slides. Now the task is to go through and save each picture individually -_-