You can download the Microsoft SharePoint webpart for Application Workspace from the Application Workspace Downloads page. After you download liquit-workspace.sppkgyou can install it into your SharePoint environment.
Install the Microsoft SharePoint Webpart into SharePoint online
To install the Microsoft SharePoint Webpart, you should navigate to your appcatalog.
For more information on how to set up or find your app catalog see Microsoft documentation.
After installing the Microsoft SharePoint Webpart, you can set up the Webpart by following the steps described in Microsoft SharePoint web part.