Recovering a lost database

I’m working on a site that was build with Expression Engine. It was taken down, but a back up of the site was created by the host in which the database could supposedly be recovered from.

I have all of the files that were in the zip and can’t seem to find any SQL files anywhere in the site. The only thing that I’ve come across is a cache folder (in which there’s a db_cache) and a db folder (which is just an html and php file).

There are several db_cache files but there’s nothing in there that looks like SQL commands.

Is there a way to recover anything from this site? Where would it be kept?