Uasset files not showing up in content browser

I am trying to make a mod from extracted .uasset files; i copied them over to my project directory with the same file structure; but they aren’t showing up in the content browser - only the folders. I tried using multiple versions of unreal editor - 4.24, 4.25, and 4.26 with no luck. I’ve extracted the pak files so I know that the pak file isn’t encrypted, and other users have modded these files and so imported them into unreal. What am I doing wrong? Thanks