Hi Dhiraj,
Please update the plugin to the latest v4.3.0. After that, please go to our “Print” settings section and enable the new “Print Tools > Products List” checkbox (it’s at the bottom of the page). Now there should be a new section available – “WooCommerce > Settings > EAN > Print Products”. User interface still needs some improvement, though. For example, I’m planning to add pagination, etc. Please give it a try and let me know what you think.
P.S. There is another option available since plugin v4.3.0, however, it won’t list variations, so probably not good for you, but just in case – if you add the “Products > Bulk actions > Each product” to “Print > Print buttons > Quantity input” option, and then go to the admin “Products” list, there will be quantity input fields added to each product row.