Using OneDrive on Mac

I'm trying to open a document (PowerPoint) that someone has shared with me on OneDrive. I have OneDrive from years ago when I had Microsoft Office but I no longer have access to those applications. OneDrive wants me to open the file in Publisher which I don't have and can't seem to get. I don't want to buy a program just to open it, most of the answers online say you just open it as you would any other file but that isn't working, it keeps prompting Publisher and I don't seem to have any other apps that will work. I've tried downloading the file but I get the same result. Anyone know how to do this without buying a new app? Free apps are fine, but not free trials that cost you later as they can be very difficult to get rid of. On a MacBook Air.