No, I wasn't expecting to see images. I was expecting to see the folder of the files I had unzipped and I didn't see anything. I downloaded the KCPS Palletes zip file which has a link attached to it: https://forums.getpaint.net/applications/core/interface/file/attachment.php?id=2986 (the link is what was downloading. Not the zip file.)
EDIT: I figured it out. I clicked the file, opened the peazip app and clicked the option yes when asked about the new archive and moved the files to the palettes folder. The palettes work.