I really need to know what font is this, I think is Helvetica or a variable but I´m not sure, please help me!

Raleway  Suggested by lolobeber 
Proxima Nova  Suggested by frd 

Similar, just in case.

Thanks drf_ but that is similar too..but is not the font I´m looking for...the a and w are different..

link to that web/document?

Ça ressemble beaucoup à "Raleway". Toutes ses variantes sont téléchargeables sur le lien ci-dessous.
That is very similar to "Raleway". All its variants can be downloaded from the link below.

Thanks a lot!! that is the font that I want to know, u help me a loot, thanks again!

Pero pon el enlace, que asi te lo confirmamos rápido

Ya me la identifico lolobeber, de todas maneras gracias, saludos!