In the event dashboard click on "Content" from the side bar.

Select the “Engage” Page. This will list all engagement items, including published polls.

Find the published poll you want to view the responses for and click on “Responses” on the poll card. 

This will take you to the poll responses page. You can also click on “Project Responses” to project the responses onto a big screen.

To export all the responses for the poll, click on the download icon on the top right.

How to view and export poll responses?