Export mathematical programming model as LP file

[pathfinder1_1]

Hi, I have a MIP model using PROC OPTMODEL. I would like to export it as an external file, .LP format, for instance. How can I do that? Thanks. 

[RobPratt]

There is no direct support for .lp format, but you can use the SAVE MPS statement to create an MPS format data set.  The EXPAND statement yields output similar to .lp format.  Is the purpose to get something human readable for debugging or to use as input to a solver that requires .lp format?