woocommerce/templates/emails/plain/email-order-details.php

<?php
/**
 * Order details table shown in emails.
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/emails/plain/email-order-details.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://docs.woocommerce.com/document/template-structure/
 * @package WooCommerce/Templates/Emails
 * @version 3.7.0
 */

defined( 'ABSPATH' ) || exit;

do_action( 'woocommerce_email_before_order_table', $order, $sent_to_admin, $plain_text, $email );

/* translators: %1$s: Order ID. %2$s: Order date */
echo wp_kses_post( wc_strtoupper( sprintf( esc_html__( '[Order #%1$s] (%2$s)', 'woocommerce' ), $order->get_order_number(), wc_format_datetime( $order->get_date_created() ) ) ) ) . "\n";
echo "\n" . wc_get_email_order_items( // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
	$order,
	array(
		'show_sku'      => $sent_to_admin,
		'show_image'    => false,
		'image_size'    => array( 32, 32 ),
		'plain_text'    => true,
		'sent_to_admin' => $sent_to_admin,
	)
);

echo "==========\n\n";

$item_totals = $order->get_order_item_totals();

if ( $item_totals ) {
	foreach ( $item_totals as $total ) {
		echo wp_kses_post( $total['label'] . "\t " . $total['value'] ) . "\n";
	}
}

if ( $order->get_customer_note() ) {
	echo esc_html__( 'Note:', 'woocommerce' ) . "\t " . wp_kses_post( wptexturize( $order->get_customer_note() ) ) . "\n";
}

if ( $sent_to_admin ) {
	/* translators: %s: Order link. */
	echo "\n" . sprintf( esc_html__( 'View order: %s', 'woocommerce' ), esc_url( $order->get_edit_order_url() ) ) . "\n";
}

do_action( 'woocommerce_email_after_order_table', $order, $sent_to_admin, $plain_text, $email );