# Merging .case Files

**URL:** https://discourse.paraview.org/t/merging-case-files/16962
**Category:** ParaView Support
**Created:** [July 15, 2025, 9:07am UTC](https://discourse.paraview.org/t/merging-case-files/16962 "2025-07-15T09:07:41Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![allal\_amene](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/a/b3f665/32.png) [@allal\_amene](https://discourse.paraview.org/u/allal_amene)
#### Post date: [July 15, 2025, 9:07am UTC](https://discourse.paraview.org/t/merging-case-files/16962/1 "2025-07-15T09:07:41Z")

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Hello,

I’m stuck on merging the data. I have three ‘.case’ files, each containing simulation data for different time steps. However I can’t manage to merge them into a single file that includes all the time steps. I tried using _Merge Time_, but it doesn’t work very well.

The goal is to have all time steps in one file so I can perform _Temporal Statistics_.

Best regards.

 ![Capture d’écran du 2025-07-15 11-03-36](https://discourse.paraview.org/uploads/default/original/3X/4/1/41f851101c534bf7715765656b06b6e15bef684f.png)

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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: [July 15, 2025, 9:14am UTC](https://discourse.paraview.org/t/merging-case-files/16962/2 "2025-07-15T09:14:41Z")

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Does it work if you open the files as a file series ?

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### Author: ![allal\_amene](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/a/b3f665/32.png) [@allal\_amene](https://discourse.paraview.org/u/allal_amene)
#### Post date: [July 15, 2025, 9:53am UTC](https://discourse.paraview.org/t/merging-case-files/16962/3 "2025-07-15T09:53:14Z")

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i try this, but it doesn’t work and i don’t find a reader for this case (i add a number for the files only in paraview, in my computer they have the same name file _RESULTS\_FLUID\_DOMAIN.case_  
[RESULTS\_FLUID\_DOMAIN.case.series](https://discourse.paraview.org/uploads/short-url/s9huSUASXiYbMH8UDUzIIgmj8Ce.series) (539 Bytes)

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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: [July 15, 2025, 12:33pm UTC](https://discourse.paraview.org/t/merging-case-files/16962/4 "2025-07-15T12:33:46Z")

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Indeed, the EnsightReader does not support reading a time series.  
You could save these into .vtu files, name them and open them as a file series.

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### Author: ![allal\_amene](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/a/b3f665/32.png) [@allal\_amene](https://discourse.paraview.org/u/allal_amene)
#### Post date: [July 15, 2025, 12:52pm UTC](https://discourse.paraview.org/t/merging-case-files/16962/5 "2025-07-15T12:52:29Z")

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Thank you for your feedback. Maybe my question is silly but for the conversion, is there a function that does this automatically in ParaView or do i have to use Python coding?

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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: [July 15, 2025, 12:59pm UTC](https://discourse.paraview.org/t/merging-case-files/16962/6 "2025-07-15T12:59:55Z")

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File → SaveData