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You need MATLAB® running before you can open the Simulink® Library Browser.
In the MATLAB Command Window, enter simulink.
A short delay occurs the first time you open the Simulink Library Browser. The figure shows the Library Browser with the Out1 block selected in the Simulink/Commonly Used Blocks sublibrary. A block description that appears when you hover over it.
The Library Browser keeps a repository of all the libraries it shows. If your library has missing repository information, a notification bar appears above the Libraries pane when you refresh the Library Browser. To prevent this notification from appearing again, click on Fix in the notification bar and choose Resave libraries in SLX file format. This saves all libraries in .slx format with EnableLBRepository property set to on.
You can also open the Simulink Library Browser from the MATLAB Toolstrip, by clicking the Simulink Library button . To keep the Library Browser above all other windows on your desktop, in the toolbar, select the Stay on top button .
For information about key tasks involving the Library Browser, see:
Create a new Simulink model from the Simulink Library Browser.
From the Simulink Library Browser toolbar, click the New Model button . An empty model diagram opens in the Simulink Editor.
From the Simulink Editor menu, select File > Save. In the Save As dialog box, enter a name for your model, and then click Save.
Open an existing Simulink model from the Simulink Editor.
From the Simulink Editor menu, select File > Open.
In the Open dialog box, navigate to the folder and model file you want to open, and then click Open.
The selected model opens in the Simulink Editor. For example:
Alternatively, in MATLAB you can set the current folder to the folder containing your model, and then in the MATLAB Command Window, enter the model name without the filename extension.