How can I move my photos from LR CC to LR Classic, keeping all my organization, and without using sync?

I am new to Lightroom and initially imported all my images into the new Lightroom CC, subsequently organizing them and giving them multiple keywords, etc. This is not a process I'd like to repeat for all my 10,000+ images. I want to switch to using Classic and keep all my organization. I only have the 20gb cloud option so I can't sync many images anyway, but I don't see why I should have to do this extremely tedious process if they are already on the computer... I just want to move my organization from one program to the other without having to go through the cloud; is this possible?