.. This is another example of the merge facility
<<#merge dat>>
<<#switch fjenny.fnt>>
_overtype_
_file_line_                                                                    MML Systems Ltd,
_file_line_                                                                    Pentlow Mill,
_file_line_                                                                    Cavendish,	 
_file_line_                                                                    Suffolk.
_file_line_                                                                    _date_            



_insert_
Dear _file_line_


     Whilst  we  are  most  obliged  by your continued custom with  our  company,  we  are  becoming 
increasingly  concerned  with  the  extent to which your account has  become  overdue.  The  sum  of 
_file_line_  is  not inconsiderable, and would set even the listening bank whistling  through  their 
teeth. You early payment would be greatly appreciated.

     Looking forward to hearing that the cheque is in the post

          Yours sincerely

                         Andrew Clarke.