Alan61

The folders have _ (underscore) in the name and the file has , (comma) in the name. I just tried it again but exporting to my desktop and it worked fine. I tried it another time but to the directory with the underscore and it worked fine. So I think it is the deep directory structure that causes the problem. Good one. :-)

Thanks Jim. I sent it to a colleague who has the exact same setup as I do with VW 2014 and Windows 10 and he managed to export it fine, so now I'm confused but we at least we have a work around.

I'm trying to export from VW 2014 to create a 2012 DWG file and I get a "Teigha Library Error - The file could not be opened". I have rebooted and only opened Vectorworks and I still get the error. I also deleted all previous DWG export folders previous exports had produced but were empty. I'm running Windows 10. I've even tried copying just the design layer I want to export to a new file, but I still get the error. Can anyone help or point me in the right direction. I've searched the community board.