How to convert pp2 profile to pp3?

Hi all,
I’m new to RawTherapee, and to raw photo in general. I’m starting few days ago using latest RT release, but have found and downloaded a pp2 profile file, that is not loaded by RT. Have tried to rename pp2 to pp3 extension with no luck.
Now the question is if there is any way to convert pp2 to pp3.

thank you
regards,
Davide

pp2 is from RT 2.x, which is really really old. I don’t think it’s convertible to pp3 format

http://rawpedia.rawtherapee.com/Getting_Started