This is the Spanish translation in .txt with UFT-8.
I'm a professional translator and this is not the first time I translate something like this, so I would say the file is ok and ready to upload.
I used a neuter Spanish, clear to understand in any Spanish speaking country. I also went through the forum as I was translating to understand the context of words and expressions. I also checked it twice for mistakes and misspellings. So it's close to 100% ok.
If there's any correction or comment, please, let me know.