ADM 204 - Integrating Office Online with SharePoint
Brian Alderman, MVP, MCT - Featured Speaker

Microsoft Office Online Server (OOS), formerly known as Office Web Applications (OWA), is documented

as an optional SharePoint component, but in reality, it is a requirement to take full advantage of SharePoint's new features. Office Online Server provides a powerful punch to SharePoint by providing Excel Services, Search results document preview, Business Intelligence features, and the use of Durable Links functionality introduced in SharePoint Server 2016.