I tried to retrieve an older version of an Antetype file through my DropBox version history but couldn’t because Antetype documents show up as folders. Is there anything I can do to still find the original version?
The files located in the folder should be versioned by DropBox. You can retrieve older versions of those files and copy them in the file package. The files rely on each other, so it is best to make sure that they have the same date.
In the Finder, you can access the contents of a file by context menu > Show Package Contents.
Ok, that sounds dangerous.