Press the "Inventory" on the left hand side.
Hover over one of the column titles and then press on the three dots that pop up.
Press "Manage Columns."
Turn on the tab for "Total Orders."
Press "Export" in the bottom left hand corner of the page.
Check in the bottom right hand corner to make sure all of the rows are visible on the page.
See the above for a visual representation of running the report described.