This add-in gives SolidWorks the ability to import geometric data from 3DM files
BSEditor: 3DM Import for SolidWorks is a Rhinoceros (.3dm) file import add-in for SolidWorks. This add-in gives SolidWorks the ability to import Geometric data from 3DM files.

3DM Import for SolidWorks reads polygon mesh and curve data stored in 3DM files and imports it into SolidWorks. A polygon mesh in a 3DM file is comprised of a set of triangular/Quad faces. 3DM Import for SolidWorks creates trimmed planar surfaces for each TRIANGLE/quad and knits them together to Create a body. If the polygon mesh is closed (i.e. it does not contain boundary edges) then 3DM Import for SolidWorks will create a closed body feature, otherwise an open surface will be created. You can also import the polygon mesh as a 3D Sketch. The curves can be imported as a 3D Sketch in a part document, a 3D Sketch in an Assembly document or 2D Curves in a drawing document.

3DM Import for SolidWorks is very easy to use as it adds new commands to SolidWorks. It also adds a submenu to the SolidWorks menu called 3DMImport. you can free download 3DM Import for SolidWorks 1.0 now.