HFSS Equivalent Circuit Export

Couldn't find specific guides on this, but I would like to know the exact procedure to using HFSS's equivalent circuit export in Cadence Virtuoso. I'm guessing out of all the output formats, I should be using *.cir since it's a Spectre format? I don't know what instance in Cadence to call on this file though. Also, does anyone also know what kind of equivalent circuit it builds? Is it just an RLGC cell? I do not want to use s-parameter export. Thanks.