The SOLUTION file

The information in a printed solution may be output as a SOLUTION file, according to the Solution file option (which may refer to the PRINT file if so desired).

Infinite bounds appear as 1020 rather than None.  Other numerical values are output with format 1p, e16.6.

A SOLUTION file is intended to be read from disk by a self-contained program that extracts and saves certain values as required for possible further computation.  Typically the first 14 records would be ignored.  Each subsequent record may be read using

format(i8, 2x, 2a4, 1x, a1, 1x, a3, 5e16.6, i7)

adapted to suit the occasion.  The end of the ROWS section is marked by a record that starts with a 1 and is otherwise blank.  If this and the next 4 records are skipped, the COLUMNS section can then be read under the same format.  (There should be no need for backspace statements.)