Hi, Josh!
Since the component uses Joomla articles and Yootheme Pro layouts to store information about products, I believe there is no problem to import from any source using a parser.
Do not forget that the product card layout may be different, so there will not be a universal solution that will suit all users.
I can fill the catalog for you from any source, site, or XLS/XML/CSV table.
You know where to find me
Regards, Alex.