The user must submit a model in MPS format to solve a linear program. The
user may optionally specify a file that includes FICO Xpress commands to
customize the use of the optimizer.
Note: An email address is required for any submissions to FICO
Xpress solvers. This email address will be forwarded to FICO and may be
used by FICO for promotional purposes. When using the XML-RPC interface,
you must add the line <email>email@example.com</email>
to the XML file that is submitted to the NEOS Server.