Once you are finished saving the items you want (which you do by clicking the banner icon) go into Saved, which is in the left-hand column. From there, either choose the individual items you want to export - or if you want them all, click the box by "Number of Records." Next, choose the icon for Export. Be careful not to select the Download icon.
Select the citation manager you'll be exporting to, and a file will be created and downloaded.
It is possible to download (not export) the metadata in other formats, as shown below. . This will give you the option to export in the following formats:
The CSV option provides a spreadsheet, a portion of which is shown below. This can be very useful in quickly reviewing the chosen citations, as the full abstract is available for quick perusal. You can easily search for individual authors as well.
Note: choosing PDF does not export the entire PDF, only its associated metadata