Thread:Cleanroom01/@comment-5028213-20130201104348/@comment-5028213-20130202013056

Your example is not a URL, it is a file path on your hard drive, I reckon.

The web link has to start with  and would be an URL to google.com. In other words, it's the adress in your browser's adress bar, when viewing your uploaded Excel file.

You do need a registered account at Google to use Google Spreadsheets, though.