How can i change the plugin language?

Hello WPMU DEV!

I bought your plugin, and i'd like to set up on my site, but in hungarian language, if it is possible.
I found the appoinment.pot file, and if i inport with my program (poedit on Mac) i can translate anything, but please let me know, how can i export .pot file, and how can i use the translated file on my site.

Thanks for Your help.

Balazs