Help video for tbs zip file?

purchased and downloaded training video for TBS. Now its on my computer as a zip file and nothing will open it. NOW WHAT? Any help is appreciated.
Thanks in advance

I have now downloaded this video zip file to my windows based computer and also to my MacBook Pro and both will not open. File may be corrupt I guess. what to do. I purchased this today and can’t do anything with it…AUUUUUGH!!!

Update: I received assistance from Wayne at toon boom and this problem was solved quickly with his help. Thanks again Wayne!!!