With this plugin you can create XML feeds for Skroutz and Bestprice. Based on original plugin “Skroutz.gr & Bestprice.gr XML Feed for Woocommerce By emspace.gr” [https://wordpress.org/plugins/woo-xml-feed-skroutz-bestprice/]
Since the 1.6.0 version is a major release, if you face any issues, choose the “Rollback to previous version” option (in order the XML feeds to be produced the old way.) and contact us at wordpress@enartia.com to resolve your issues