Add custom line item meta to the WooCommerce Customer/Order XML Export Suite XML output

gistfile1.php

<?php
add_filter( 'wc_customer_order_xml_export_suite_order_export_line_item_format', function( $line_item_format, $order, $item ) {

  	// remove imploded meta
	unset( $line_item_format['Meta'] );

	// add custom meta
	$line_item_format['YourFullName'] = woocommerce_get_order_item_meta( $item['id'], 'your_full_name', true );

	return $line_item_format;
}, 10, 3 );