This report shows those recipients who have not opened your email. Drilling down on this report will display all the email recipients who did not open your email.
Clicking on the DISPLAY button will show a drop down. You can change the order the emails are displayed in by using the Sort By drop down. You can also change the number of emails you see on a page by using the Page Size drop down.
Clicking on the Export drop down allows you to either export the non-openers as CSV or create a new address book from them.
To return to Reporting overview screen, use the back link. To view the drill down detail on other reports, use the More Reports button. This will display a menu from which you can select the report type as shown below.