# pvtu example
**URL:** https://discourse.paraview.org/t/pvtu-example/15441
**Category:** ParaView Support
**Created:** [September 25, 2024, 5:57pm UTC](https://discourse.paraview.org/t/pvtu-example/15441 "2024-09-25T17:57:51Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@TakisCFD](https://discourse.paraview.org/u/TakisCFD)
#### Post date: [September 25, 2024, 5:57pm UTC](https://discourse.paraview.org/t/pvtu-example/15441/1 "2024-09-25T17:57:51Z")
Is there any example available to understand how to write the ghost cells for the individual vtu files that are linked by the pvtu file?
I have successfully written from a CFD code the vtu and pvtu files (without ghost). So I want to ensure that there are not steps in the visualisation when I want to display the contours/cell data to point data etc.
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### Author:  [@spyridon97](https://discourse.paraview.org/u/spyridon97)
#### Post date: [September 25, 2024, 8:31pm UTC](https://discourse.paraview.org/t/pvtu-example/15441/2 "2024-09-25T20:31:12Z")
Well if you load the pvtu file (which is a collection of vtu files), run the ghost cells filter, and then save the result again as a pvtu, each vtu will have the correct ghost cells marked. If you want to extract the ghost cells, there is also a filter for that.
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### Author:  [@TakisCFD](https://discourse.paraview.org/u/TakisCFD)
#### Post date: [September 25, 2024, 8:32pm UTC](https://discourse.paraview.org/t/pvtu-example/15441/3 "2024-09-25T20:32:55Z")
Thanks Spiro, I will try it and let you know.