From the developer: "Properties of Water & Steam is a software package designed for anyone who needs to have accurate properties of water. The program is based on the industrial IAPWS Industrial Formulation 1997 standard. PWS supplies you with the fastest and most stable steam functions available. The PWS Excel Add-in release combines the capabilities of MicroSoft Excel with the accuracy and speed of the PWS steam functions. PWS Excel Add-in is easy to use, automatically installs itself, and allows using different units in the same worksheet."
What's new in version 2.1
ReleaseNovember 8, 2008
Date AddedNovember 6, 2002
Operating SystemsWindows 95, Windows 2000, Windows 98, Windows, Windows XP, Windows NT
Additional RequirementsWindows 95/98/NT/2000, Microsoft Excel