Import csv data and jartListToWaveform()

 Hello,

I apologize if this question has been asked before. In spite of its very basic nature I could not find any answer to the following problem on the cadence forums.

From a previous simulation I have a CSV textfile with time/value pairs

input.csv

0.00000000000e+00 -1.10875637805e+00
2.00000000000e-13 -1.10875643662e+00
....

 and the following skill code is used to import it:

pFILE=infile("input.csv")

if( pFILE then
  lDATA=list()
  time=0
  value=0

  while(gets( tLINE pFILE)
    time=substring(tLINE 1 17) 
    value=substring(tLINE 19 18) 
    lDATA=cons(list(time value) lDATA)
  )
  wDATA=artListToWaveform(lDATA)
  newWindow()
  plot(wDATA)
)

close(pFILE)

Unfortunately my input.csv is pretty large (300K lines) and artListToWaveform(lDATA) crashes with a stack overflow. Moreover, the import itself is not as fast as I'd like it to be, but this is probably due to the substring function

Is there a more efficieny way for importing large csv files? Thank you in advance.

Regards, Phil