# Cannot save xcos simulation model

**URL:** <https://scilab.discourse.group/t/cannot-save-xcos-simulation-model/905>\
**Category:** General usage\
**Created:** [April 10, 2025, 3:01am UTC](https://scilab.discourse.group/t/cannot-save-xcos-simulation-model/905 "2025-04-10T03:01:08Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ee-diary](https://avatars.discourse-cdn.com/v4/letter/e/57b2e6/32.png) [@ee-diary](https://scilab.discourse.group/u/ee-diary)\
**Post date:** [April 10, 2025, 3:01am UTC](https://scilab.discourse.group/t/cannot-save-xcos-simulation-model/905/1 "2025-04-10T03:01:08Z")

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I am new to scilab(used matlab) and i made a simulation model and tried to save it,but the model is not saved anywhere. below is picture showing the model, name of the model and the current directory where it says it saved there? i saved previously also, next day i tried to find it but could not find. does anybody know whats the reason?

 ![scilabxcos](https://global.discourse-cdn.com/free1/uploads/utc/original/1X/2a0cede173af3f6e52075e53b18e6bbdee02362f.png)

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**Author:** ![Bored\_Maverick](https://avatars.discourse-cdn.com/v4/letter/b/b9e5f3/32.png) [@Bored\_Maverick](https://scilab.discourse.group/u/Bored_Maverick)\
**Post date:** [April 10, 2025, 8:57am UTC](https://scilab.discourse.group/t/cannot-save-xcos-simulation-model/905/2 "2025-04-10T08:57:21Z")

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I had a similar problem. Make sure that you save the file as a ‘.zcos’ file in your chosen directory. When I do that, I can always get the file on my file explorer. Hope this helps.

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<div class="post-metadata">

**Author:** ![ee-diary](https://avatars.discourse-cdn.com/v4/letter/e/57b2e6/32.png) [@ee-diary](https://scilab.discourse.group/u/ee-diary)\
**Post date:** [April 10, 2025, 10:48am UTC](https://scilab.discourse.group/t/cannot-save-xcos-simulation-model/905/3 "2025-04-10T10:48:52Z")

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I did triedto same as .zcos file and tried other file as well, it does not get saved? is this me only, how come? using windows 10.

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**Author:** ![Shon\_Shon](https://avatars.discourse-cdn.com/v4/letter/s/c2a13f/32.png) [@Shon\_Shon](https://scilab.discourse.group/u/Shon_Shon)\
**Post date:** [April 14, 2025, 4:17pm UTC](https://scilab.discourse.group/t/cannot-save-xcos-simulation-model/905/4 "2025-04-14T16:17:04Z")

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You need to also write the extension when saving the file.  
If for example are trying to save a file with the name `my_model`, in the “save as” window you need to write `my_model.zcos`, not just the name.