The diffiense of Office Online and local Microsoft Office

Office Online (known before 2014 as Office Web Apps) is an online office suite offered by Microsoft which allows users to create and edit files using lightweight web browser-based versions of Microsoft Office apps: Word Excel PowerPoint and OneNote. The offering also includes Outlook.com People Calendar and OneDrive all of which are accessible from a unified app switcher. Users can install the on-premises version of this service cal