I've got 25 folders, each containing approx 10 DGN files that have been extracted from a 3D model. I need to convert them all to DWG format.In the past, I have simply performed the obvious 'DGNIN' command on each individual file. But this is very time consuming.I have done a little bit of research on batch converters online, but am yet to find anything that seems to be ideal.Does anyone know of any software and / or procedures that may help speed things up for me?Thanks in advance!

What batch converters are you referring to?Why aren't they ideal?  What don't they do?Did you look at this one?https://www.reaconverter.com/purchase/Someone asked the same question over at the AutoDesk Discussion forums back in 2011.  A respondent posted a custom lisp routine you might want to check out.  There are four pages of posts.  I suggest you read through them all.https://forums.autodesk.com/t5/visual-lisp-autolisp-and-general/batch-convert-dgn-to-dwg/td-p/3237978


John Connor2016-01-27 14:35:30