If you tell me or which software you are using (Excel, Python, etc.), I can help you set up CoolProp as a free alternative.

If you're interested in using RefProp 10 for commercial or professional purposes, I recommend purchasing a license from NIST or a authorized distributor to ensure you have access to the full features and support.

To install RefProp 10, simply download the software package, extract the files, and follow the installation instructions.