Everyone will have the opportunity to try the Office 15 public beta later this summer, state the Office blog.Office 15 is the codename for the next generation of the Microsoft Office products and services, and the Technical Preview is the first time we share our work with a select group of customers under non-disclosure agreements. Office 15 is the most ambitious undertaking yet for the Office Division. With Office 15, for the first time ever, we will simultaneously update our cloud services, servers, and mobile and PC clients for Office, Office 365, Exchange, SharePoint, Lync, Project, and Visio.