After purchasing the plugin from the Pricing page, you can download the zip file for Bosa Elementor for WooCommerce Pro plugin. As Bosa Elementor for WooCommerce Pro is a plugin, it is installed from the plugin installation page. Follow the following steps.
Dashboard > Plugins > Add New Plugin > Upload Plugin.
After that, choose the Bosa Elementor for WooCommerce pro plugin file and then click on Install Now.
Now you can activate Bosa Elementor for WooCommerce Pro.