If there is something what you want to change/ add/ remove, following picture show how to do it after choosing the file in the Google Docs.

Here is the link to the survey:
https://spreadsheets.google.com/viewform?formkey=dFgyenJfT011andJMFMzMGtXbDMweFE6MQ&theme=0AX42CRMsmRFbUy05ZmUwYTMwZC01YjUwLTQyNjAtYTdmMi0yZTk0ZGI5OTNjMWQ&ifq