PowerPoint viewer

A few weeks ago someone posted a really cool PowerPoint presentation, and
when some people complained that they couldn't view it, it was suggested
where they might go to d/l a free viewer. Does anyone still have the link?
My brother in law (probably the only person who doesn't have some version of
Microsoft office in my family) needs something like this to view a .pps
file. Many thanks in advance.

--

Bruce R

"While playing golf today I hit two good balls. I
stepped on a rake." - Henry Youngman