Thanks for your answer, but the question is not about the keybord layout, which is OK, neither about the interface language. I prefer english, so it easier to find information on the net in case of troubles.
The question is about the character encoding (it_IT; it_IT.UTF.8 , it_IT@euro, it_IT@euro.UTF
-8 or en_EN, en_EN.UTF-8 and so on.
How do I change them?