magento-test/app/code/Magento/Customer/etc/address_formats.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Customer:etc/address_formats.xsd">
    <format code="text" title="Text" />
    <format code="oneline" title="Text One Line" />
    <format code="html" title="HTML" escapeHtml="true" />
    <format code="pdf" title="PDF" />
</config>