3D models saved in Virtual Reality Modeling format (.vrm, .vrml etc.) can be converted to plenty of other 3D modeling formats, including 3D NURBBS CAd files (.3dm). You can find dedicated converters, such as the BabelD, that can help you with this vrml to 3dm conversion or plenty of other possible conversion.
Convert Virtual Reality Modeling Language 3D model to 3D NURBS CAD file.
We have found one software suitable in our database for this conversion.
On-line services software - convert vrml to 3dm on web
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Convert from vrml file format
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.