If you'd like to change the order of how your Document list is displayed you can do so by clicking on any of the column headers with arrows:

Clicking once will change the order to descending and clicking it again will change the order to ascending. Once that looks the way you want it, you can export them and they will be in the order of the list.

Optional: Once you change the sort order of a column you can then save the view by clicking on the "Save View" button that appears in the top right corner. This will allow you to quickly access this view again with list sorted appropriately.