I am having trouble including my Calibre xRC output (parasitic extracted netlist) in a spectre simulation.

When I set the Calibre output format to Calibreview, the extracted netlist appears as one of the 'views' which can be selected in the config test bench. This makes simulation really easy, however, the calibreview does not support hierarchical xRC which is important in my setup.

So instead now I am generating the Spectre output format in calibre xRC, which supports hierarchical extraction. The output is in the form of a text file with a .pex.netlist extension. Is there a way to instantiate this as one of the 'views' in my cadence library?