Untitled

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="admin-2columns-left" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
    <referenceBlock class="MagentoSalesBlockAdminhtmlOrderViewItems" name="order_items" template="Company_Module::order/view/items.phtml">
        <block class="MagentoSalesBlockAdminhtmlOrderViewItemsRendererDefaultRenderer" as="default" template="order/view/items/renderer/default.phtml"/>
        <block class="MagentoSalesBlockAdminhtmlItemsColumnQty" name="column_qty" template="items/column/qty.phtml" group="column"/>
        <block class="MagentoSalesBlockAdminhtmlItemsColumnName" name="column_name" template="items/column/name.phtml" group="column"/>
        <block class="MagentoFrameworkViewElementTextListText" name="order_item_extra_info"/>

    </referenceBlock>
</body>

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="admin-2columns-left" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
    <referenceBlock name="order_items">
        <arguments>
            <argument name="template" xsi:type="string">Company_Module::order/view/items.phtml</argument>
        </arguments>
        <referenceBlock name="default">
            <arguments>
                <argument name="template" xsi:type="string">Company_Module::order/view/items/renderer/default.phtml</argument>
            </arguments>
        </referenceBlock>
    </referenceBlock>
</body>

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="admin-2columns-left" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
    <referenceBlock name="order_tab_info">
        <action method="setTemplate">
            <argument name="template" translate="true" xsi:type="string">order/view/tab/info.phtml</argument>
        </action>
        <referenceBlock name="order_items">
            <action method="setTemplate">
                <argument name="template" translate="true" xsi:type="string">order/view/items.phtml</argument>
            </action>
            <referenceBlock name="default">
                <action method="setTemplate">
                    <argument name="template" translate="true" xsi:type="string">Custom_Order::order/view/items/renderer/default.phtml</argument>
                </action>
            </referenceBlock>
        </referenceBlock>
    </referenceBlock>
</body>

<preference for="MagentoSalesBlockAdminhtmlOrderViewItemsRendererDefaultRenderer" type="CustomOrderBlockAdminhtmlOrderViewItemsRendererDefaultRenderer"/>

class DefaultRenderer extends MagentoSalesBlockAdminhtmlOrderViewItemsRendererDefaultRenderer{}

MagentoSalesBlockAdminhtmlOrderViewItemsRendererDefaultRenderer