Downloaded the file, remotely, on my home Raspberry Pi (the expendable one), and the zip file does include 3 xlsx file and a txt file (which contains SQL), so it does seem legit

I can't, however, open that file at work as it's an untrusted ZIP file and I would suggest, like Luis said, provided the data in a consumable format for everyone. Forum users have very little trust of ZIP files uploaded to forums, etc.