You can use a free plugin call “Poly Lang” found here: https://wordpress.org/plugins/polylang/
Here is the quick installation guide on how to use it: https://wordpress.org/plugins/polylang/installation/
If you had any issues with the Polyland plugin, refer to this link : https://wordpress.org/plugins/polylang/faq/ for documentation and support.
Here is the premium choice which is both powerful and compatible with our theme: https://wpml.org/
and here is the guide on how to install WPML: http://docs.creiden.com/circleflip/circle-flip-with-wpml/
We don’t have an .xml file for RTL website. I will check with the dev team if I can provide it for you.
Let me know if I can assist you further.