Is any way ?
Dear @karanik,
there exists a Wordpress2Grav converter already available as a WP plugin (https://wordpress.org/plugins/wp2grav/ ), which exports all your WP pages as files ready to be placed in the user/pages folder.
If the installation of this plugin fails, read the forum post here https://wordpress.org/support/topic/installation-fails-no-valid-plugin-found .
Thank you.
Selection_013
Do you know how to fix the encoding?
My article is in Greek Language.
That’s more a question regarding that specific plugin, which you can ask on the plugin support forum on wp.org
As of four days ago: “Does not work in Newer WordPress versions”
Just an FYI. 
I’ve let the author know on the GitHub repo.