How to import products into opencart from CommerceML 2.021 xml file?

Question

opencart

Good afternoon!
I ask you to help in this matter with any advice, a link to a module for opencart or a library for working with CommerceML.
There is an import.xml file uploaded from 1s Bitrix.
The format is terrible there, of course, and I would like to upload them to the site.
What do you advise how to do?

Answer 1

Module for CommerceML versions 2.03
I don't know how different CommerceML formats differ between versions, you can try to finish it if not much.