Zoreh, can you start a new thread, as this question is unrelated to "Can't find 3D Slicer Extension". Also, can you be more specific in your postings so we can help you better.

I am not sure what you want to visualize, the vtk meshes or the coefficient files? 

Also, we do not support matlab, there is a separate matlab tool by Li Shen, but I don't know whether our coefficient files are compatible.

Martin