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<?xml version="1.0"?>
<page layout="1column" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="widget.extended">
            <action method="setTemplate">
                <argument name="template" xsi:type="string">Vendor_Module::widget/grid/extended.phtml</argument>
            </action>
        </referenceBlock>
    </body>
</page>