Office Forms and PowerBI

Hi everybody,

I saw this article : http://www.andrewfitz.net/one-day-at-a-time/testing-out-office-forms-and-power-bi

I don't know how create connection to Office Forms?  I know only how connect to Excel survey in Office365 or in Onedrive.com, but office Forms are very nice to use in my job. I'm a teacher :-) .

Thanks for your answer.

Karel Rejthar