Start the add-in by clicking Corner Round All command under Flat Pattern tab, CodeSystems panel.

After starting command App will detect all sharp corners in flat pattern and highlights them.

Corner Round Fillet Radius is the thickness value by default. After clicking the OK button, the Corner Round feature is made.

See detailed information: https://meksystems.fi/wp/autodesk-apps/corner-round-all/

The installer that ran when you downloaded this app/plug-in from Autodesk App Store will start installing the app/plug-in. OR, simply double-click the downloaded installer to install the app/plugin.

You can unload the plugin without uninstalling it by unchecking the "Loaded/Unloaded" check box associated with the plugin in the Autodesk® Inventor® Add-In Manager. You may have to restart Inventor to completely unload the application.

To uninstall this plug-in, exit the Autodesk product if you are currently running it, simply rerun the installer, and select the "Uninstall" button. OR, you can uninstall it from 'Control Panel/Programs and Features' (Windows 7/8.1/10/11), just as you would uninstall any other application from your system.