Where is the Checkout template in woocommerce?

Question

WordPress

In the woocommerce/checkout folder, I found the "form-checkout" file, in which the order form is displayed in this way do_action( 'woocommerce_checkout_billing' ); . I wonder how to get to the order form itself.

Answer 1

Here is about re-ordering. You need to collect an array with the fields in the right order in the hook https://apppresser.com/woocommerce-checkout-custom...
Well, there are a bunch of plugins for customizing order fields.

Answer 2

I just read an article on docs.woocommerce on how to add new fields. As far as I understand, there is no file with fields. They need to be created and connected through filters.
Then I have another question, how to swap fields in the form?