To export data from a scorecard, go to the Download tab. If the report hasn't been computed recently, you can use the Compute button on the upper left of the list of tiles. If you ask to have the data computed again, you will receive an email when the report is ready for download.
After the calculations are finished, you will see a list of reports you can download on the Download tab. This scorecard has two calculated reports. They can be downloaded (exported) in Excel or CSV format.