This example shows how to import model design data from a file into the data dictionary.
In the Simulink® Editor, select View > Model Explorer to open the Model Explorer.
Click File > Open. Then browse to an existing dictionary.
In the Model Hierarchy pane, right-click the dictionary node and select Import from File. Then browse to and select the MAT-file that contains the data to be imported.
Design data from the MAT-file populate the dictionary. Design data appear with DataSource set to the name of the dictionary.
If you import from the same MAT-file again, Simulink only imports changed or new entries into the dictionary.