The user is actually exporting both the date and time from the date columns.  This can be checked by opening the CSV file in a spreadsheet and then clicking on the cell and looking at the value in the edit bar at the top of the screen. Another way would be to open the export file in a text editor and looking at the values in each row.  The problem is that the spreadsheet cell format is preventing the cell from displaying the date portion of the value properly.  

Answer:  Format both columns as "Short Date" or "Date", depending on the version of Excel you are using, and the values will be visible.