You should be able to convert DWF CAD file to SLD format using AutoCAD.
Convert Autodesk Design Web Format to Autodesk AutoCAD slide.
We have found one software suitable in our database for this conversion.
Apple macOS / Mac OS X software - convert dwf to sld on OS X
AutoCAD® for Mac® software—it’s AutoCAD, for the Mac, bringing robust 3D free-form design tools and powerful drafting capabilities to your platform of choice. It takes full advantage of the Mac OS® X platform, with an intuitive, graphical user interface that makes it easy to bring your ideas to life.
Convert from dwf file
|Yes, AutoCAD for Mac supports dwf file conversion as a source file type.||Yes||Yes||dwf editor||Yes||No||No||No|
to sld file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.