View custom-fields-for-woocommerce.php
<?php
/**
* Plugin Name: Custom Fields for WooCommerce
* Description: Add custom fields to WooCommerce products
* Version: 1.0.0
* Author: Gareth Harris
* Author URI: https://catapultthemes.com/
* Text Domain: cfwc
* WC requires at least: 3.4.0
* WC tested up to: 3.4.2