There seems to be an issue with users’ ability to download the open-ended responses when using Internet Explorer. We are having the developers look into this. In the meantime, if you could try in Chrome and see if that works and let us know, that would be helpful. I am able to download open-ended responses in Chrome.
To answer your other question, no, currently you can’t add open-ended responses into the summary report. However, we did have a discussion with users about what features they’d like added to the reports and we’re exploring possibilities for 2018.