tablename_insert is used to WRITE a record to the file. The parameters passed to the stored procedure are the values of all the columns in the row, in the order of the columns in the database. The timestamp column and identity column (if present in the table) are not passed to the stored procedure.
Given the Sample XFD, you might want to create the following stored procedure for writing records to a file:
create procedure ftestdat_insert @ft2_key char(4), @ft2_key1_seg1 char(2), @ft2_key1_seg2 char(2), @ft2_altkey2 char(4), @ft2_number char(9), @ft2_info char(10) as insert into ftestdat (ftest2_key, ftest2_key1_seg1, ftest2_key1_seg2, ftest2_altkey2, ftest2_number, ftest2_info) values (@ft2_key, @ft2_key1_seg1, @ft2_key1_seg2, @ft2_altkey2, @ft2_number, @ft2_info) grant execute on ftestdat_insert to public