I made a spreadsheet myself for temperature calculation, but not as big as yours.
Basically, I enter the base temperature, albedo, neutral gases pressure, O2 pressure, greenhouse gas pressure and safe anti-greenhouse gas pressure. It gives me surface temperature in K and °C, total pressure and O2 %.
On my colonies, I aim for 0.2 atm of oxygen, a total of 1 atm (if possible) and a surface temperature of 22°C. The table is simple and easy to use, I don't feel it's worth automating it more.