Xfce Can I get XFCE in Spanish?

Hello everybody!

I am using XFCE, but I would like to have that environment in Spanish. Can it be done?

¡Hola a todos!

Estoy utilizando XFCE, pero quisiera tener ese entorno en español. ¿Es posible lograrlo?
Well, thanks for your time. But it didn't work for me :(

I followed the commands you gave me, and it didn't change the interface language. The manual above didn't offer a simple or clear answer.

When I did it in OpenBSD, it was just to add this lines on the .profile file:
export LANG=es

Can anybody here make a "step by step" explanation about "how to change the XFCE interface language into spanish"? :)