Using open_system( ) with specific matlab version

I have a batch script that opens a simulink model:

matlab -r "set(0, 'RecursionLimit', 2000); open_system('file.slx')"

I have been using this script for a model using matlab 2018b. I have had to install 2021 matlab for another project i'm working on and when I try run this batch file it now always opens in 2021. Is there a way to run this batch file and open "file.slx" in matlab 2018b when I have a newer version installed?

[Voss]

Try replacing "matlab" there with the full path of the 2018b exe, e.g.:

"C:\Program Files\MATLAB\R2018b\bin\matlab.exe" -r "set(0, 'RecursionLimit', 2000); open_system('file.slx')"

[Dylan]

This worked thanks!