Hey Marisa and Jordan,
I downloaded this layout for personal use and I when I looked at it in my download folder, it wasn't a zipped folder or anything.
Sometimes files have been zipped with .7z compression (which makes the file much smaller). For directions on opening it, see here.
Thank you! I was so confused and now I feel dumb haha
No problem. There are lots of things going on, so it's easy to miss something.