Error in voxel HDF5 file to VTK conversion

when i try to convert voxel plot to vtk format i get following syntax error


                                 

The openmc-voxel-to-silovtk script is something that must be run from a command line. In your screenshot, you appear to be trying to run this from a Jupyter notebook, which expects Python input. If you want to run a command line program from a notebook, you can add an exclamation point before it:

!openmc-voxel-to-silovtk plot_4.h5

Hi, can we get more explication from you about this problem,cuz i have too.
thanks a lot.