Can't open PSD sample files that Adobe provided as part of a tutorial

Hello

I get "how To" instructional emails from Adobe and recently got one on how to blend two images in PS. I wanted to learn how to do this and so I downloaded the sample files that were provided by Adobe (both .psd files). But when I tried to open them up in PS, it gave me a message saying that PS "could not open the clipboard because PS didn't recognize this type of file". I don't get it. THe files were from Adobe and were .psd files. I updated PS just in case, but it still would not open these files. PS works fine otherwise. I can move images from Lightroom etc. What am I missing? Is there some setting that needs to be changed? thanks in advance