Mac users interested in Dwg converter osx generally download:
DWG/DXF Converter allows you to convert DWG and/or DXF files version 12 to 2007 on DWG and/or DXF files version 12 to 2007. So you can very simply convert a DWG 2007 file to a DWG 12 file or to a DXF 2000 file.
DWG-DXF Converter is compatible with DWG 2010 files.
CAD File Converter is the key that gives you access to drawings in the most common CAD formats, by making them compatible with your own graphic programmes visualising them and printing in PDF format.
It can import drawings in DWG, DXF and DXB from version 12 to the most recent 2011 version, as well as drawings and maps in every kind of DWF format, compressed and uncompressed.