Conversion of Simulink Model to previous version

I used a Matlab Trial Version 2020a.

Now I am not able to use it due to some technical issues.

I have a 2015b version. But my file is saved in 2020a version.

Answer 1

[Cris LaPierre]

Under the Save option, select Previous Version... and then, under the Save as Type drop down menu, select the version you want.

Just be aware that each new release may contain new blocks/features that may not exist in older versions, so it may not be possible.