These comments are applicable to your replies in the order they were posted.
1) I downloaded the Archon steam program demo. Nice program, but it doesn't have an input for steam quality. A great website for economical software.
2) I contacted that office initially, but the person is in...
There must be a way to use Excel with steam tables.
I have downloaded Water97 v13.xla. Freeware based on IAPWS-IF97. It's in metric units. I have converted the numbers back and forth. Not a problem, just a hassel.
But it's not obvious how to get at something like superheated pressure when...