reversing the order of listed items

In the module type "Listing form data" that comes with efg, there is an option to indicate a field(s) that you would like to use to order the submitted form entries. By default this ordering is ascending meaning the earliest submitted items would show up on top for the date field. Is there a way that I can reverse this sort order. I would like the most recent items to show up first.

I know I can do this by clicking on the column header link and reverse the sort order this way in the front end. But I would like the default sort order to show me the most recent entries first.

I have not found a way to do this in the module, or a template. I assume I would either have to change the template or even go as far as modify the php code. Any suggestions?

Thank you,
Tonu