Determining which font is embedded in my PPT

[Charlie Brown]

I've learned in another post in this community group that
I cannot edit a ppt file developed on another computer
because my computer is missing a font. I still want to
be able to edit the file, even if it means I have to buy
a font from somewhere. How can I determine what font I
am looking for. I am not a font expert and I don't know
which font has been embedded in the file. Is there
somewhere that will list what fonts have been embedded in
a ppt file?

Thanks