The Export page enables you to customize an order export to a file format that is different from the standard Amazon's Order Report format. This is done by creating an export template.
Go to [Setting] / [Orders] / [Export]
Click New Export Template.
Enter a template name, and use Orders for this template.
Choose the export format (xls, csv) from File Type selections.
Click Save Template. The page will refresh to display a table with three columns: Export column name, Order Field, and Custom Value. If you want a static value to be exported, select "Custom_Value_Static" from Order Field dropdown, then enter the static value in the Custom Value.
Map all the fields you want to export.
Press Save Mapping.
Go to [Orders], select one or more orders.
From the Action menu, select [Export] / [Apply]
From the template dropdown, select one template.
Export.