# combine vtk group

**URL:** https://discourse.paraview.org/t/combine-vtk-group/12285
**Category:** ParaView Support
**Created:** [June 12, 2023, 4:46am UTC](https://discourse.paraview.org/t/combine-vtk-group/12285 "2023-06-12T04:46:59Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![m.enayat](https://discourse.paraview.org/user_avatar/discourse.paraview.org/m.enayat/32/11811_2.png) [@m.enayat](https://discourse.paraview.org/u/m.enayat)
#### Post date: [June 12, 2023, 4:46am UTC](https://discourse.paraview.org/t/combine-vtk-group/12285/1 "2023-06-12T04:46:59Z")

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Hi  
I have a group of .vtk files that are related to a 3D mesh. My mesh is split into 320 .vtk files each of which had been processed by a core. I want to merge these .vtk files and assemble my whole mesh.  
What should I do? please consider that I know nothing about paraveiw program.

thanks,  
Mohammad

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [June 12, 2023, 7:23am UTC](https://discourse.paraview.org/t/combine-vtk-group/12285/2 "2023-06-12T07:23:30Z")

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Hi @m.enayat

- Open each file, press Apply everytime
- Select every file in the pipeline browser by pressing Ctrl
- Add a AppendDataset filter, press Apply
- Save as a .vtk file

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### Author: ![m.enayat](https://discourse.paraview.org/user_avatar/discourse.paraview.org/m.enayat/32/11811_2.png) [@m.enayat](https://discourse.paraview.org/u/m.enayat)
#### Post date: [June 19, 2023, 11:48am UTC](https://discourse.paraview.org/t/combine-vtk-group/12285/3 "2023-06-19T11:48:51Z")

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Thanks. It was very helpful.