How can I open my current Simulink models in previous versions of Simulink?

I try to open a Simulink model created with a current version of Simulink in an older version of Simulink, but I encounter the following error:

Error using open
Model 'testModel' was created with a newer version (R2022b) of Simulink
To disable the error message, use Simulink preferences.
To create a model that is compatible with this version of Simulink, load
the model in Simulink R2022b and select Save > Export Model to > Previous
Version.

In older Simulink versions, I see the following warning:

Warning: Loading model 'testModel' generated with an earlier
version (2.09) of SIMULINK.

Answer 1

[MathWorks Support Team]

Option 1: Export Model to Previous Simulink Version

The recommended workflow is to export the model to a format of a previous version. To do this:

1. Open the model in the appropriate newer Simulink version, or try Simulink Online.

2. Save it as the required older version model by choosing Save > Export Model to > Previous Version from Simulink Toolstrip.

3. Load the saved model from step 2 above in the selected older Simulink version.

When you export a model to a previous version, the model is saved in the earlier format, regardless of whether the model contains blocks and features that were introduced after that version. See Export Model to Previous Simulink Version for more details regarding compatibility.

 

Option 2: Allow loading models created with a newer version of Simulink

In case exporting the model to previous version is not possible, you can disable to error message in the Simulink preferences in the older version. To do this:

1. In MATLAB Toolstrip, on the HOME tab, click Preferences.

2. Select the Simulink pane and click Open Simulink Preferences.

3. Select the Model File pane and scroll down. Uncheck "Do not load models created with a newer version of Simulink".

4. After you open your model from the newer version of Simulink and save a copy of it that is compatible with your current version, it is recommended to reverse this setting.

[dhruv gajwa]

Simulink has a preference, in the Model File section, called "Do not load models created with a newer version of Simulink". You can temporarily turn this off rather than edit the model files to change version numbers.

If the model uses only basic blocks then it might be possible to load it in R2017b, but it could also crash MATLAB. As others have commented, using the "Export to Previous Version" feature is the supported way to take a model from a later release to an earlier one.

Remember to turn the preference "Do not load models created with a newer version of Simulink" back on afterwards.

[Mohammed Ibrahem]

so every time i change between models that been created in different version I have to download either newer or previous version of MATLAB or sometimes both????

[mihai sava]

yes ! is owfull

[Matthe]

i agree

[Farah]

Very helpful note, thanks!

Answer 2

[qaqcvc]

Just hope someday the MATLAB will create an automatically transform tool that can be used online. We upload the new version model, and it will transform in cloud, and then we can download the older version. I guess this is not difficult to deliver.

[Mohammed Saif]

Coming from the future, that day never happened.

[Ammar Abbas]

https://de.mathworks.com/matlabcentral/answers/94724-how-can-i-open-my-current-simulink-models-in-previous-versions-of-simulink#answer_723800

https://www.mathworks.com/products/simulink-online.html

Answer 3

[Muhammad Rehman]

if someone dont have the new version, and only have previous version, is there any way to convert. like i have simulink model build in 2018a and i want to open it in 2017b. and i dont have 2018a.

regards

[dhruv gajwa]

Simulink has a preference, in the Model File section, called "Do not load models created with a newer version of Simulink". You can temporarily turn this off rather than edit the model files to change version numbers.

If the model uses only basic blocks then it might be possible to load it in R2017b, but it could also crash MATLAB. As others have commented, using the "Export to Previous Version" feature is the supported way to take a model from a later release to an earlier one.

Remember to turn the preference "Do not load models created with a newer version of Simulink" back on afterwards.

[Angelo Hafner]

This was an excellent tip dhruv gajwa. Thank you.

Answer 4

[Giuseppe Silano]

You can use Simulink online (see https://www.mathworks.com/products/simulink-online.html ) to convert the Simulink scheme to a previous version of MATLAB. I hope this helps.

Answer 5

[Hicham Lhachimi]

When I do all this steps i don't find the previous versions , i find only 3 choices : Simulink models (*.slx) Simulink models (*.mdl) all files (*.*)

[Ashley Daniel]

Try File -> export model to -> previous version

Answer 6

[Abishek Kalyanaraman]

/is it possible to do vice versa

[Stefanie Schwarz]

Simulink models are generally backwards compatible, that is, you can usually open a model from an older version in a newer version of Simulink without issues. But of course, our Simulink products evolve over time and functionalities and blocks may change.

That's why our recommendation is to use Upgrade Advisor to migrate models to newer releases:

https://www.mathworks.com/help/simulink/ug/consult-the-upgrade-advisor.html

Answer 7

[Deniz Altindas]

Hello everyone, I have 2007b matlab and i can not open this file. I guess simulink is saved as .slx . is there anyone can open it and convert it suitable for 2007b? its really important and urgent

[Mykola Demchuk]

Hi there! Could anyone convert this slx file to the mdl one so that I can work on it in Matlab 2007b.

Answer 8

[dhruv gajwa]

Simulink has a preference, in the Model File section, called "Do not load models created with a newer version of Simulink". You can temporarily turn this off rather than edit the model files to change version numbers.

If the model uses only basic blocks then it might be possible to load it in R2017b, but it could also crash MATLAB. As others have commented, using the "Export to Previous Version" feature is the supported way to take a model from a later release to an earlier one.

Remember to turn the preference "Do not load models created with a newer version of Simulink" back on afterwards.

Answer 9

[RITESH KUMAR]

hi

please this higher version file to convert to matlab 2015 format of matal simulink. as soon as possible. its urgent.

[Sandeep Nayak]

Please ensure which version 2015 a or 2015 b. this is 2015 b

[Sandeep Nayak]

Please ensure which version 2015 a or 2015 b. this is 2015 b

[RITESH KUMAR]

2015a

[Samiullah Khan]

hybrudmicrogrid is of 2018a

[ENGR SHEHROZ HASHIM MUHAMMAD HASHIM]

i need this file in 2018a (created in matlab 2020a) i need urgently iin 2018a

Answer 10

[HONG CHENG]

You can follow this link and hope this can help you

How do I run a Simulink file in older version of MATLAB, which was generated by a newer version of MATLAB?