Although both .prtprp and .drwdot files are templates from SolidWorks, it does not seem very likely that any kind of prtprp to drwdot conversion is actually possible, simply because of different purpose of both files. But of course if you struggle with some particular issue or problem with such export, it would be probably best to contact SolidWorks support or perhaps to reach out to the online user community.
Updated: August 22, 2023