# opening vtkPolyData
**URL:** https://discourse.paraview.org/t/opening-vtkpolydata/16926
**Category:** ParaView Support
**Tags:** vtk
**Created:** [July 11, 2025, 2:50pm UTC](https://discourse.paraview.org/t/opening-vtkpolydata/16926 "2025-07-11T14:50:52Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@honororjoseph](https://discourse.paraview.org/u/honororjoseph)
#### Post date: [July 11, 2025, 2:50pm UTC](https://discourse.paraview.org/t/opening-vtkpolydata/16926/1 "2025-07-11T14:50:52Z")
Hello everyone! I want to do some processing based on the results of a CFD calculation. But when I open this file in ParaView, I get an error:
ERROR: In vtkDataReader.cxx line 1966.
vtkPolyDataReader (000002158FD8DCE0): unsupported data type:
Can you tell me what is wrong with this file?
> **[Google Drive: Sign-in](https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1PEtk2hrmZeMpxiabJV6X7zR18mqkriRd%2Fview%3Fusp%3Ddrive_link&followup=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1PEtk2hrmZeMpxiabJV6X7zR18mqkriRd%2Fview%3Fusp%3Ddrive_link&ifkv=AdBytiOkXOvHCNSLWhbYbz7nw4tch-03cuXyx7yt_fMVUWQujoXF40M8fa6eybJrEVT7cD0iGNVUkg&osid=1&passive=1209600&service=wise&flowName=GlifWebSignIn&flowEntry=ServiceLogin&dsh=S-132148144%3A1752245427873877)**
>
> Access Google Drive with a Google account (for personal use) or Google Workspace account (for business use).
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [July 11, 2025, 2:52pm UTC](https://discourse.paraview.org/t/opening-vtkpolydata/16926/2 "2025-07-11T14:52:58Z")
Please share your file
---
### Author:  [@honororjoseph](https://discourse.paraview.org/u/honororjoseph)
#### Post date: [July 11, 2025, 5:08pm UTC](https://discourse.paraview.org/t/opening-vtkpolydata/16926/3 "2025-07-11T17:08:09Z")
Sorry, the file is larger than 4 MB, so I can only send it as a link to the cloud. I have attached the link above.
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [July 11, 2025, 5:17pm UTC](https://discourse.paraview.org/t/opening-vtkpolydata/16926/4 "2025-07-11T17:17:28Z")
Yes but you should provide access to the link above. Currently it says that the file is not shared.
---
### Author:  [@honororjoseph](https://discourse.paraview.org/u/honororjoseph)
#### Post date: [July 11, 2025, 5:22pm UTC](https://discourse.paraview.org/t/opening-vtkpolydata/16926/5 "2025-07-11T17:22:45Z")
Now I’ve fixed it!
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [July 11, 2025, 5:35pm UTC](https://discourse.paraview.org/t/opening-vtkpolydata/16926/6 "2025-07-11T17:35:04Z")
`Temperature 1 30996 double`
Your data does not respect the VTK data format.
> **[VTK File Formats - VTK documentation](https://docs.vtk.org/en/latest/design_documents/VTKFileFormats.html#legacy-file-examples)**