With this option it is possible to read VTK files, with .vtk extension.
This importer/exporter is implemented as a Tcl plugin, based on the VTK package (Visualization Toolkit library).
The file information is converted into postprocess mesh and results. They are supported unstructured and cartesian meshes.
There is an extra option:
Merge: to add the mesh to the current mesh and results, else current model is erased.