Change the language of Subtitles with VobSub

[subtitles123]

Hello, I am very new to using subtitles while watching movies on my computer.
Therefore, I am having difficulties changing the subtitles from Danish to English.
I already have the VobSub software and the film.avi film.idx and film.sub files, I am just unsure how to switch the languages in Subresync (do I have to save the files again? If so how?).

[Baldrick]

Moving you to our subtitle section. The user guides are only for completed guides.

I can't remember...I last used subresync 2005...

[manono]

You just want to change the label? Not the content? If so, open the IDX in Notepad and where it says 'Danish' and 'da' a ways down from the top, change it to 'English' and 'en'. From:

# Language index in use
langidx: 0

# Danish
id: da, index: 0

to:

# Language index in use
langidx: 0

# English
id: en, index: 0

Why do I have the feeling that's too easy and not what you're asking? You can also remove any languages you don't want using VobSubStrip.

[subtitles123]

Oops, sorry for posting it in the wrong section.

Haha, you were right! That's exactly what I was asking for, thank you so much for your help!

(One small note: because English was the second option in my .sub file, I set
langidx: 2

and

id: en, index: 2 )