Hi woodizy34,
Thanks for reaching to us.
The demo you are referring to is using a Custom Product layout, which is built with the WoodMart WooCommerce builder. Further, you can read more about the Layout Builder here: https://xtemos.com/docs-topic/woodmart-woocommerce-layout-builder/
You can create a dev site and import any template there. Devsite – also called a Staging platform where you can test issues, enable/disable features/plugins thus such changes will affect the main site. The below article will help you to create it:
https://www.wpbeginner.com/wp-tutorials/how-to-create-staging-environment-for-a-wordpress-site/
Finally, with the help of the import functionality of Elementor you can export the template, more detail is here: https://elementor.com/help/template-library/
Regards,
Hung PD