Last year, I asked Is there a good free replacement for the "Foliage" brush in Corel's Bob Ross "Mystic Mountain" toolset?, about doing the provided Mystic Mountains tutorial despite not having the full brush set. I eventually just settled for improvising without all of the provided brushes. I have since bought another Humble Bundle, this one including Corel Painter 2019. And so I decided to try to use those Essentials brushes I'd received before in Painter 2019. Unfortunately, the installer provided would not install to Painter, and I cannot find the brush files to import. And, even if I wanted to buy those brushes anew, their license expired, so the Bob Ross brushes are no longer available for purchase.
How do I export these brushes from Essentials 6 in a format that Corel Painter 2019 will accept?