Hey sorry about this issue! I am unable to recreate the problem on my computers & the zip is working on my end, so it would be helpful to get more information.
This issue resolved problems with opening the zip on windows for many: https://docs.google.com/document/d/15EzT-SLNZg7Z-jOQNb682dtv6VQgpUx6iQLpjiTIKY0/...
Can you e-mail me a screenshot of the error you are getting if this doesn't work? [email protected]