How to assign an app to a particular file type?

[stringtheorist]

I don't seem to be able to assign a particular app to open all files of a particular type. I'm clicking "Open With" and selecting the appropriate app but it only applies the app to the selected file.

 

[simsaladimbamba]

Step 5 and following are the ones you need to pay attention too:

How to change the default application a certain file type opens with​

 

[stringtheorist]

Wow... Thanks for the fast reply!