Is it possible to diff PowerPoint version-controlled with git?

Question

I have some PowerPoint documents that I keep version-controlled with git. I want to know what differences are between versions of a file. Text is most important, images and form

Answer 1

Not really. PowerPoint file is essentially an archive (zip) of the folder full of files. Git will treat it as a binary file (cause it is).

Maybe there's a 3rd party extension to do it but I've never heard of it.