add-in provides algorithms to solve Linear and Integer Programming
problems. It can be used instead of the Excel solver for the
linear models created by the Mathematical Programming add-in.
Either the Math Programming add-in or the MP Model Builder add-in
must be installed to use this add-in.
The LP/IP add-in was modified on 2/20/2011 to allow LP models
to have more than 32,000 nonzero coefficients.