WooCommerce Product CSV Import Suite Assistance Needed

I am looking for someone who has experience working with WooCommerce Product CSV Import Suite. I want my client to be able to update the products with their variations via CSV. I have created two CSVs to test this, one for the products and another for the variations, but the variations one isn't creating the variations in the store. So I need someone to troubleshoot this and figure out a way to make this work please!