SpinFire Ultimate 11.7.0 introduces changes to some importer options.  Please note these changes to see how they may help opening native CAD files or may affect how you are viewing CAD.

Added Import Options

Import OptionDescriptionImporters
Random ColorsWhether to assign a random color to a part when its color information is missing.ACIS, ProE, STEP, STL
SmoothWhether images should be filtered to appear smoother.TIFF
WireframesWhether wireframe entities are imported.AutoCAD, Rhino
Model Layout to Paper Space View

What view to use when displaying the model layout in 2D paper space.

Hidden ObjectsWhether to import entities that are present but currently hidden in the CAD file. If checked, such hidden entities will be imported but remained hidden.AutoCAD
Accurate Normals

Whether to compute surface normals when performing accurate tessellation.

(Accurate Tessellation must be checked)

ACIS, Inventor, Catia V4, Catia V5, Catia V6, I-deas, IGES, JT, Parasolid, PDF, PRC, ProE, Rhino, NX, SolidEdge, SolidWorks, STEP, VDA

Changed Behavior

Importer OptionBehavior ChangeImporter
Override PMI ColorEnabled by default.Catia V4, Catia V5, Catia V6, I-deas, PDF, PRC, ProE, NX, SolidWorks, STEP