Note that the zip file(s) here are encrypted. Please refer to the email sent to you when you purchased a license for the zip decryption key.
Your operating system may allow you to browse the zip file structure without installing additional software, but not extract the file contents. The freeware utility 7-Zip was used to create the archives and can be used to extract the contents with the decryption key.
7-Zip archiving software is available from:
https://www.7-zip.org