How to convert minecraft pe worlds or pocketmine-MP worlds to pc versions

Hi
I have a suggestion for you. At first I wan´t to say sorry that I have putted the suggestion in the "Bug" catechory, but I wasn´t abe to put it into the " Improvement" catechory, because it didn´t worked.

Is it possible to convert Minecraft pocket Edition Worlds or PocketMine-MP Worlds to a PC Edition world. And if yes, how does it work, because nowhere is an exact description.

I would be very glad if you could help me