convert from spice to spectre cadence
There is a thing called SPICE Preparser in Cadence. There are two steps of working with the SPICE model files in Spectre environment.
1. In the options of "simulator lang", the lines where you include the SPICE deck, you can write the statement as simulator lang=spice and when the spectre netlisting starts, you can write as simulator lang=spectre and then can run the files.
2. Another option is to totally convert the SPICE libraries to spectre. For that, go to the console and give the command as
spp -convert -hspcompatible <input.lib> <output.scs>.
I think that it works
Added after 57 seconds:
But the second option is a bit tiresome and the conversion is sometimes not right. So, you have to invest some time in that