Approve Clashes adds a toolbar to Navisworks with two panels: 

A. Export

1. Approved button: To export all approved clashes in the session.
2. Reviewed button: To export all reviewed clashes in the session. 

B. Import

1. As Approved button: To import all selected clashes as approved clashes.
2. As Reviewed button: To import all selected clashes as reviewed clashes.

The installer that ran when you downloaded this app/plugin from the Autodesk App Store will start installing the app/plugin. OR, simply double-click the downloaded installer to install the app/plugin. 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, click Control Panel > Programs > Programs and Features (Windows 10/11) and uninstall as you would any other application from your system.