Parse the S2P files generated from Keysight PNA, VNA, ... etc This S2P_Parser parse .S2P file passed from the terminal. The .S2P file is a two-port S-parameters file generated by Keysight PNA, VNA, ... etc. The current veriosn return the S-parameters and for each tested frequency as a Panda dataframe for further processing. Future versions will contain options for plotting the magnitude and the phase.