Yes, it works fine. I have had no issue loading Touchstone snp files from my simulator tool and from the nanoVNA. I am running Windows 10. Note if you have the 2 track unit you will only process s11 functions like Smith, log mag, vswr, etc... if you have 4 track then you can process s11 and s21 data.
If you read in a snp file you will be able to look at all parameters... I believe. I'll check to be sure that is true.
Alan
