How to add Spanish translation

Hi! I have installed your plugin in my website and I read in your documentation there’s a Spanish translation ready to be exported.
Unfortunately, I’m totally new to adding user generated translations and I have no clue what I need to do with it. What format do I export it in? Where do I upload it in my site so the plugin picks it up? I’m OK using fttp, I just need to know where it goes and how to hook it up with the plugin.
Or do I just copy/paste manually to the translation plugins you recommend?
I’ll appreciate your directions.
Thanks a lot,

Marta

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