If 7-Zip cannot open an archive or compressed file and you see Cannot open file as archive error message, here's what you can do.

The downloaded file will automatically be sent to the selected downloads folder. Now, open the downloads section by heading to the downloads icon in the top right corner of your browser window.

7-zip has finally added support for the long-requested 'Mark-of-the-Web' Windows security feature, providing better protection from malicious downloaded files.