ory   |   ( 1 )
   +------------------------+
   | character data records |
   |                        |   ( variable )
   |                        |
   +------------------------+
   |   d.p. data records    |
   |                        |   ( variable )
   |                        |
   +------------------------+
   |  integer data records  |
   |                        |   ( variable )
   |                        |
   +------------------------+
</PRE>
   The DLA format presents a higher-level view of the 