Exporting All Subitems from Table Widget on a Dashboard

Hello,

It appears that when you export the data in a table widget on a dashboard to Excel, it only exports the subitems that have been expanded manually in the widget. Is there any way to export all of the subitems, like you can do when exporting a board to Excel? I am using a dashboard to bring many individual boards together into a single report. So, being able to export the dashboard to Excel and include all subitems would be extremely helpful.

Thanks!

Voted and fully agreed, I need to export all the boards one by one to show the subtask level progress to customer.