Importing vendor products for marketplace

Hi!

I am having a question regarding importing products from vendors to our marketplace.
Our marketplace is Woocommerce based, using WC Vendors.

I would like to know if there is a easy (free or paid) way to convert (NOT migrate!)
a Vendors product export CSV to a Woocommerce compatible CSV to import.

Take Shopify for example.
Say a Vendor uses Shopify as ecommerce platform and wants to add their products to our marketplace. They can now export a product CSV, but linking fields in the import function in Woocommerce is kind of a pain in the rear end if it is not a Woocommerce export CSV.

So I would like to know if there is a way to easily convert a non-woocommerce product export CSV to a file that needs very little work to import to Woocommerce.

Thanks in advance!