Popular Products for WooCommerce

The easy way. Go to your WordPress Dashboard. Navigate to Plugins > Add New and then search for "Popular Products for WooCommerce". Click on Install and then Activate the Plugin. That's it, "Popular Products for WooCommerce is now activated on your site! The hard way.. Download "Popular Products for WooCommerce" and then extract the zip file and just drop the contents in the wp-content/plugins/ directory of your WordPress installation and then activate the Plugin from Plugins page.