In the upper left corner of the window, select the app launcher > All apps > SharePoint Tip: If you don't see the SharePoint app under All apps, use the Search box near the top of the window to search for SharePoint.

在窗口的左上角，选择应用启动器 > 所有应用 > SharePoint. 提示：如果在“所有应用”下看不到“SharePoint”应用，请使用窗口顶部附近的“搜索”框搜索 SharePoint 。