How to add a spice model to a capacitor in SIwave

You have a spice model or a .mod file and you want to use it instead of the embedded file of the capacitor

To use a spice or a .mod file, go to Tools. Do not use SPICE/Sparam vendor model assignment, instead use Attach SPICE RLC model.

Please select the name of the part. Under model select Create. Upload the file. Select which parts to change in the SPICE model assignment and modify the SPICE model column accordingly. You may wish to save the spice model assignment for future use.