If you drag 'Measure Names' from your dimensions pane onto your columns shelf you'll have a header. The header will be the calculation for your table calc on the number of records. You can then right click that header and edit the alias so that its something that is more sensible for an end user to read. I would also remove this workbook as it might contain sensitive information (assuming its not a mock up).
I removed the file. Thank you for your time and assistance. Greatly appreciate it.