You can attach specific tags to "Sent Successfully", "Sent Unsuccessfully" and "Messages Opened". If you only want to export "Sent Successfully", you can just add a tag to the customers in the list (also applies to other status).

Example for Sent Unsuccessfully
1. Click on [sent unsuccessfully], and create a new tag for failed to send email addresses.



2. In [Customer] tab, go to [More Criteria > Tags ＞ Multiple Tags ＞ Add], choose the tag you just created, and click on [Search].




3. Go to [Actions for Customer(s)] and choose [Export Excel File] from drop down menu.