Psychrometric Chart Excel [best]

For RH=10%: =0.62198*(0.1*B2)/(101325 - 0.1*B2)

Now, here is some sample VBA code to automate the process: psychrometric chart excel

Select the entire table and create a chart using the "Scatter plot" or " Chart" tool in Excel. This will create a basic chart with DBT on the x-axis and the various properties on the y-axis. For RH=10%: =0