GA SE4 updates missing

Hey all!
For some reason when I dl GA SE 4.2.4, it’s a file I have no idea how to install or put it. Usually, its a zip file that gets downloaded but this isn’t. Maybe I’m supposed to copy that file and put it somewhere? I’m assuming I need the update because I lost a lot of my kits. I keep running into an error saying missing samples for certain kits (missing sound archive find missing samples).