There's a lot of available knowledge base material and existing posts here on the forum with regards to working with survey data. I.e. Working with Survey Data | Tableau Software
What you really need to do is reshape your data before you get it into Tableau so the data structure is more like:
CustomerId, Question, Response
We recently had the opportunity to try Alteryx Designer to help us reshape/prep the data before taking it into Tableau.
Thanks again for your help.