PhpSpreadsheet was included, now how to reference it?

According to this ScriptCase v9.4.026 (2020-04-02 22:39)
Scriptcase 9.4 “Added Phpspreadsheet library”.
I do see it in /scriptcase/prod/third/phpspreadsheet
but I can’t figure out how to use it instead of the older phpexcel library.

I would prefer to add it in using the system libraries and not an additional project library… so for example with phpexcel I do this:

sc_include_lib(“excel”);

How can I get phpspreadsheet to load in a similar fashion?

I see a reference to using it over here…

but again it is included as a 3rd party library… not using the built in version.