Change language in email notifications

I configure the input language as Portuguese, but email notifications are sent in English

Anything server-side (emails, SMS, Excel reports) are not localised. If you want to translate those you need to change template files (in "templates" folder).

Ok, thanks

I had found the templates folder but How do I change the language!

Just change the template to your language.

I don't know How.
I'm not able to Decode it properly What you said ...

Decode? It's a text file.

I know it's a text file, all I'm saying is that I want notifications to appear in the Hindi language
So How should I do it ......
Change the template to my language. How ...