(form "50123" (size 61  9)
  (heading "FORMAT FILE AND DATABASE SPECIFICATION")
  (label (position  5  3) (text "Input Format File"))
  (label (position  5  5) (text "Output Format File"))
  (label (position  5  6) (text "Database Name"))
  (field "in_format_file" (position 25  3) (display_length 26) (input allowed)
    (null allowed) (max_length 26)
    (file (extension trim "*.fmt"))
    )
  (field "out_format_file" (position 25  5) (display_length 26) (input allowed)
    (null allowed) (max_length 26)
    (file (extension trim "*.fmt"))
    )
  (field "db_name" (position 25  6) (display_length 26) (input allowed)
    (null allowed) (max_length 26)
    (file (extension trim "*.ddf"))
    )
  (default_buttons)
)