3ds Max supports import of Papyrus scene files, so in the sense of using the data for making new 3ds files, such pas to 3ds conversion is certainly doable. But except for that, we have not found any particular or useful information about how to convert pas to 3ds. If you need help with some specific issue, it would be best to contact 3ds Max support or some online community.
Updated: February 7, 2023