Bulk export several projects?

Hey, I have not worked with Corel Draw since version X5. I see I can bulk export several pages in a project. Can I either open a bunch of corel draw files as pages in one project instead of different tabs or can I bulk export several tabs (project) as separate PNG's?  I have about 150 corel draw files I need to export as PNG's. I can't see to find a bulk export several several files at once.

Thanks