Just the info from the vendor:
https://www.analog.com/en/technical-articles/ltspice-simple-steps-to-import-third-party-models.htmlLooks like creating parts from Spice models has gotten a lot easier than what it used to be, and I was still using the old, "manual" way of editing/creating files by hand... so I did learn something as well today.

Long story short:
* Open the Spice model file in LTSpice. (Ex: TL431.mod) It will open as a Spice file (basically text editor mode);
* Select the subcircuit name you want to create a part from (ex: 'TL431' on the subcircuit line '.SUBCKT TL431 1 2 3');
* Right-click on the selected name, a menu pops up, select "Create symbol";
* A confirmation message appears, choose 'Yes';
* A symbol now appears in the symbol editor. You can customize its shape and rename the pins that correspond to the subcircuit nodes by default (only change the pin names, not the Spice order!);
* Save it. You can now close the symbol and the Spice file windows. The new part is available for use without having to restart LTSpice.
Note: the symbol editor in LTSpice is terrible. Even more so than the schematic editor. You've been warned.
