# Combine vtu files
**URL:** https://discourse.paraview.org/t/combine-vtu-files/10872
**Category:** ParaView Support
**Created:** [November 28, 2022, 3:02pm UTC](https://discourse.paraview.org/t/combine-vtu-files/10872 "2022-11-28T15:02:06Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Dorian\_Trabichet](https://discourse.paraview.org/u/Dorian_Trabichet)
#### Post date: [November 28, 2022, 3:02pm UTC](https://discourse.paraview.org/t/combine-vtu-files/10872/1 "2022-11-28T15:02:06Z")
Hi all,
I am generating vtu files from a parallel simulation, so that I get 100s of files per time step. I would like to combine these into one file per time step. How can I manage to do that using python ?
Thx
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [November 28, 2022, 4:54pm UTC](https://discourse.paraview.org/t/combine-vtu-files/10872/2 "2022-11-28T16:54:41Z")
Hi @Dorian_Trabichet
It may be simpler to generate enclosing .vtm files for all your vtu files.
Best,
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### Author:  [@spyridon97](https://discourse.paraview.org/u/spyridon97)
#### Post date: [November 28, 2022, 8:49pm UTC](https://discourse.paraview.org/t/combine-vtu-files/10872/3 "2022-11-28T20:49:03Z")
Hi @Dorian_Trabichet If you don’t want to create a multiblock (.vtm) file which i would suggest also, there is also `Append Datasets` filter which does what you want.
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### Author:  [@Dorian\_Trabichet](https://discourse.paraview.org/u/Dorian_Trabichet)
#### Post date: [November 29, 2022, 8:00am UTC](https://discourse.paraview.org/t/combine-vtu-files/10872/4 "2022-11-29T08:00:57Z")
Hi, thank you for your answers, that’s exactly what I need.