LibreOffice: Diffrence between language downloads?

What is the difference between these -

I downloaded from the first link but the default language is EnglishUS.How?

Did you choose your preferred language as indicated by the red arrow in the screenshot?

when I went to is said espnol.

Then it should show an option to choose the language during installation.

You mean every setup has English US, UK, Africa but when a language pack is chosen or by-default it shown something else then English it also has that language.