With the Customer interface in Store Commander, you can display and export a list of customers registered in your database and how have not yet placed an order.
When you are in the Customer interface, select the Large View.
You can now use the 'Confirmed orders' column and filter with 0.
The grid now only displays customers who have not yet placed any orders.
To extract this list onto a spreadsheet, use the Quick Export option on the toolbar (copy/paste) - see related articles below.
You can now use your mailing system to contact these customers if required.