Your excel file is a very good job!
I like precise measurements, in German I say "WER MIT MIST MISST, MISST MIST." It's a pity that in translation the play on words gets lost.
How do you measure currents? My new AC/DC current clamp (Chauvin Arnoux K1) has a span from 1mA to 4500mA and very small jaws.