It might be possible to convert DWZ drawings to DWG format using AutoCAD.
Convert Compressed AutoCAD drawing file to AutoCAD drawing.
We have found 2 software records in our database eligible for .dwz to .dwg file format conversion.
Microsoft Windows software - convert dwz to dwg on Windows
Leading 2D and 3D CAD development software from Autodesk
Convert from dwz file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned dwz to dwg. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert dwz to dwg on OS X
Mac version of popular Autodesk AutoCAD software