Sql2005 Export File To Directory

Hi all,
I have scheduled a package to export data from the table to the execl file in the local directory, it work fine. However, when the next time you execute the package it give error on 'file already exists'. Prephap this is due to previously already created a file in the directory.

I try to use drop option in the ssis during creating the package for export, but the result still the same. I do not know the drop option is working, can someone tell me is that working fine? if not what is the solution or possible cause.

Thanks for your help.:)