How to change the language of my blog

Hi!

I’ve been googling this for quite a while now and figured I just need some step by step instructions for dummies ??

I have a wordpress blog on my server (https://www.camillaandersen.no) and everything (except the blog posts) is in English. I need everything to be in Norwegian. I know that I need a language file but I can’t find it.

I also don’t know if there is more that I need to do other than downloading it, transfering it to the language folder and editing wp-config?

Help is deeply appreciated ??