Re: How can I force the user to select a specific file extension?

Hi.

One option is to clean the extension given by the user, and force your own extension.

You can use  FM CH_SPLIT_FILENAME to get the path and file name and then put your own.

CALL FUNCTION 'CH_SPLIT_FILENAME'

   EXPORTING

     complete_filename       = v_user_file_name

  IMPORTING

    NAME                    =  v_file_name

    PATH                    = v_file_path          .

CONCATENATE v_file_path v_file_name '.csv' into v_new_file_name

Hope this helps