# Issue with Playing TXT Group in ParaView

**URL:** https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742
**Category:** ParaView Support
**Created:** [May 29, 2025, 8:06am UTC](https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742 "2025-05-29T08:06:04Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![Qwenthur](https://discourse.paraview.org/user_avatar/discourse.paraview.org/qwenthur/32/16084_2.png) [@Qwenthur](https://discourse.paraview.org/u/Qwenthur)
#### Post date: [May 29, 2025, 8:06am UTC](https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742/1 "2025-05-29T08:06:04Z")

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Hi all,  
When opening a TXT group, I encountered the following issue: the TXT group cannot be played , but a VTK group opened using the same method can be played.

By comparing the information of the two groups, I noticed that the VTK group includes two lines of information: “# of Time Steps” and “Current Time”, while the TXT group lacks these. What causes this difference? Is there a way to enable playback for the TXT group, similar to how it works for the VTK group?(ParaView-5.13.1, MacOs)

Best regards,  
Qwenthur

 ![tg](https://discourse.paraview.org/uploads/default/original/3X/a/e/ae057308524946a76c1b989301ea13df03c6d55c.png)  
 ![ti](https://discourse.paraview.org/uploads/default/original/3X/8/9/89694122135e3ee33bd4d46d3da5c69370761278.png)  
 ![vg](https://discourse.paraview.org/uploads/default/original/3X/4/1/412fb95e21be09e63ab5a24d446383b00dd5a410.png)  
 ![vi](https://discourse.paraview.org/uploads/default/original/3X/4/1/41fad9755f246598e42d9b8a446ff53a7e10c99f.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: [June 2, 2025, 9:29am UTC](https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742/2 "2025-06-02T09:29:10Z")

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Indeed, I confirm that the txt reader does not support reading multiple files as a time series sadly.

It should not be hard to add though, alternatively, you can store your file as .vtt files.

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### Author: ![Qwenthur](https://discourse.paraview.org/user_avatar/discourse.paraview.org/qwenthur/32/16084_2.png) [@Qwenthur](https://discourse.paraview.org/u/Qwenthur)
#### Post date: [June 4, 2025, 10:42am UTC](https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742/3 "2025-06-04T10:42:24Z")

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Hi Mathieu,

I couldn’t find a TXT reader that supports reading multiple files as a time series, so I generated a .vtt file based on my .txt files. When I open the .vtt file, the “Supported Types” section lists .vtt as a valid format. However, after opening it, ParaView reports that a reader for .vtt file could not be found.

Is this issue caused by using an older version (5.13.1) of ParaView? Or do I need to download an additional plugin to support .vtt files?

Best regards,  
Qwenthur

 ![have no reader](https://discourse.paraview.org/uploads/default/original/3X/8/f/8fef1d284ea9ffde68d2a9fb7f8d4da6dce14c01.png)  
 ![supported types](https://discourse.paraview.org/uploads/default/original/3X/f/1/f19b7c7787e2b5f4eaad299cda09c4ff10419d0b.png)  
 ![vtt](https://discourse.paraview.org/uploads/default/original/3X/0/4/04695ae8e1e04d2e53491cdee423f81ef7b8a93a.png)

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<div class="post-metadata">

### 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 4, 2025, 10:54am UTC](https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742/4 "2025-06-04T10:54:14Z")

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please share your vtt file

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### Author: ![Qwenthur](https://discourse.paraview.org/user_avatar/discourse.paraview.org/qwenthur/32/16084_2.png) [@Qwenthur](https://discourse.paraview.org/u/Qwenthur)
#### Post date: [June 4, 2025, 11:10am UTC](https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742/5 "2025-06-04T11:10:01Z")

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[m\_simulation.vtt](https://discourse.paraview.org/uploads/short-url/87ctu3KrMuVieR2G286FuL3LDqP.vtt) (17.3 KB)

Do you need .txt files?

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<div class="post-metadata">

### 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 4, 2025, 11:11am UTC](https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742/6 "2025-06-04T11:11:26Z")

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That is not a .vtt file though, it looks like a list of txt file in xml format ?

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<div class="post-metadata">

### Author: ![Qwenthur](https://discourse.paraview.org/user_avatar/discourse.paraview.org/qwenthur/32/16084_2.png) [@Qwenthur](https://discourse.paraview.org/u/Qwenthur)
#### Post date: [June 4, 2025, 11:16am UTC](https://discourse.paraview.org/t/issue-with-playing-txt-group-in-paraview/16742/7 "2025-06-04T11:16:14Z")

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Yes. I’m sorry, I thought this was the .vtt file. 😭
