Claudio,
If you share the Google Sheet as a CSV file you can access it using a simple web link in Sense. The issue with this is that the sheet must be publicly accessible, but it will have a long obscure URL - so no one is likely to find it by chance.
The Qlik Web Connector that Sandeep refers to is one of the Free connectors (see this post). You need to log in to Qlik.com with a customer login and go to the Downloads section (Try or Buy).
Note that the free connectors will expire after a few months, so you always need to keep up with the current version of QWC if you are only using free connectors.
Hope that helps,
Steve
