Due to popular demand, I have added Pleco format to the export page on NewCLO (you will need to be a subscriber to access that page).
So you can now choose which lessons you want to export, what content from each lesson you would like (vocabulary, characters, supplemental vocabulary) and it will export it in a Pleco ready file.
If you would like the Pleco flashcard list for all 420 lessons on CLO, you can find that here.