PPS File Viewing
Hey there [Lynn],
PPS files can be viewed in Microsoft PowerPoint. This program is part of Microsoft Office suite. Or you can purchase it separately and it is not too costly by itself. Anyway, after you install PowerPoint, you should have no problems displaying .PPS files.
The file you sent is actually pretty cool. It’s a PowerPoint slide show and contains some cute photos. 
Hope your day is going well.
Tom