<!channel> I am using piecewise linear voltage source (pwl()) in xschem to provide arbitrary input signal to my circuit as shown in the figure. The input data is stored in a .csv file. Everytime I have to run the simulation, I have to copy and paste the timestamps and voltage values from .csv file to the pwl() function (which is Vs in the figure). Is there a way to directly load the .csv file and passing it to the pwl function through netlist instead of copying and pasting the timestamps and voltage values ?