# CellData only available for some cells?

**URL:** https://discourse.vtk.org/t/celldata-only-available-for-some-cells/7067
**Category:** Support
**Tags:** file-formats
**Created:** [November 4, 2021, 7:17am UTC](https://discourse.vtk.org/t/celldata-only-available-for-some-cells/7067 "2021-11-04T07:17:31Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![quy.nguyendai](https://discourse.vtk.org/user_avatar/discourse.vtk.org/quy.nguyendai/32/4162_2.png) [@quy.nguyendai](https://discourse.vtk.org/u/quy.nguyendai)
#### Post date: [November 4, 2021, 7:17am UTC](https://discourse.vtk.org/t/celldata-only-available-for-some-cells/7067/1 "2021-11-04T07:17:32Z")

</div>

Hi,  
I’m working on a script to output VTK format (.vtu Unstructured Grid Files) of FEM analysis for using with Paraview.

For some result code, I have only the results for some cell, not all. For example, I have 200 cells within my model, but I have only 100 CellData. How we can deal with this situation?  
Thank you in advance,  
Regards