Spanish translation

I writed the spanish version, a pot file traslating the plugin to Spanish, but with the regionalisms of Argentina y Uruguay, which have some differences with Latin America and Spain, but anyways, latin american and spanish people can get it. I downloades via ftp the file, but nothing has changed, i mean, translatiosn doesn’t work… Any idea of what’s failing or how to fix it?

https://www.ads-software.com/extend/plugins/wp-birthday-users/