S Parameter measurement and saving touchstone file format (.sNp)

Hello,

I am trying to collect s-parameter data and am having trouble saving the results in the touchstone file format (.snp). When I run the VI (attached), I can view the results locally on the vna for all 9 s-parameters since I am doing a 3-port measurement. However I cannot find any command or option to export the data in a .s3p format. I am using the Keysight N5227A  PNA Network Analyzer and have the drivers associated with it. I am communicating with the instrument through GPIB as well.

Thanks in advance!