DNI WooCommerce

What does this plugin do?
-It shows a field in the checkout
-It allows adding the ID when adding a manual order
-Allows showing the ID in invoices, emails etc
-Verify that there are 8 numbers and 1 letter
-Other plugins create an extra field, this plugin has used _billing_vat_number that is already integrated in woocommerce
-By deactivating or removing the plugin, you can consult the captured IDs