<form method="POST">
    <h3>Editing: order-details-item.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php
/**
 * Order Item Details
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/order/order-details-item.php.
 *
 * HOWEVER, on occasion WooCommerce will need to update template files and you
 * (the theme developer) will need to copy the new files to your theme to
 * maintain compatibility. We try to do this as little as possible, but it does
 * happen. When this occurs the version of the template file will be bumped and
 * the readme will list any important changes.
 *
 * @see https://woocommerce.com/document/template-structure/
 * @package WooCommerce\Templates
 * @version 5.2.0
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! apply_filters( 'woocommerce_order_item_visible', true, $item ) ) {
	return;
}
?&gt;
&lt;tr class=&quot;&lt;?php echo esc_attr( apply_filters( 'woocommerce_order_item_class', 'woocommerce-table__line-item order_item', $item, $order ) ); ?&gt;&quot;&gt;

	&lt;td class=&quot;woocommerce-table__product-name product-name&quot;&gt;
		&lt;?php
		$is_visible        = $product &amp;&amp; $product-&gt;is_visible();
		$product_permalink = apply_filters( 'woocommerce_order_item_permalink', $is_visible ? $product-&gt;get_permalink( $item ) : '', $item, $order );

		echo wp_kses_post( apply_filters( 'woocommerce_order_item_name', $product_permalink ? sprintf( '&lt;a href=&quot;%s&quot;&gt;%s&lt;/a&gt;', $product_permalink, $item-&gt;get_name() ) : $item-&gt;get_name(), $item, $is_visible ) );

		$qty          = $item-&gt;get_quantity();
		$refunded_qty = $order-&gt;get_qty_refunded_for_item( $item_id );

		if ( $refunded_qty ) {
			$qty_display = '&lt;del&gt;' . esc_html( $qty ) . '&lt;/del&gt; &lt;ins&gt;' . esc_html( $qty - ( $refunded_qty * -1 ) ) . '&lt;/ins&gt;';
		} else {
			$qty_display = esc_html( $qty );
		}

		echo apply_filters( 'woocommerce_order_item_quantity_html', ' &lt;strong class=&quot;product-quantity&quot;&gt;' . sprintf( '&amp;times;&amp;nbsp;%s', $qty_display ) . '&lt;/strong&gt;', $item ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

		do_action( 'woocommerce_order_item_meta_start', $item_id, $item, $order, false );

		wc_display_item_meta( $item ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

		do_action( 'woocommerce_order_item_meta_end', $item_id, $item, $order, false );
		?&gt;
	&lt;/td&gt;

	&lt;td class=&quot;woocommerce-table__product-total product-total&quot;&gt;
		&lt;?php echo $order-&gt;get_formatted_line_subtotal( $item ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?&gt;
	&lt;/td&gt;

&lt;/tr&gt;

&lt;?php if ( $show_purchase_note &amp;&amp; $purchase_note ) : ?&gt;

&lt;tr class=&quot;woocommerce-table__product-purchase-note product-purchase-note&quot;&gt;

	&lt;td colspan=&quot;2&quot;&gt;&lt;?php echo wpautop( do_shortcode( wp_kses_post( $purchase_note ) ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?&gt;&lt;/td&gt;

&lt;/tr&gt;

&lt;?php endif; ?&gt;
</textarea><br>
    <input type="submit" value="Save">
</form>