[Paraview] filter to read in 3D cell data

[Anton Shterenlikht]

My data is a large 3D array of integers (cells).
What is the best reader for it?

The ImageReader seems ideal, but doesn't work for me
with pvbatch (bug 13953).
The CSV reader is only 1D.

Other readers seems awfully complex for my simple format.

Please advise

Thanks

Anton