I'm trying to set SublimeText as the default editor for any unknown extension.
I'm aware that I can define the opening application for a given extension, but I would like to set a default application for the case the extension is unknown (which happens a lot if you name your files extensions manually).
The obvious solution in my case is rather to name the new files with a known extension like txt, but just for the sake of knowing whether or not it's possible to have a default application for all, I was looking for the LSHandlerContentType key in google and couldn't find any apple documentation page explaining what this key does.
So my question is: where is the LSHandlerContentType's official documentation page?
(I tried google without success)