Microsoft have released the first official public preview of the next version of Office. Office 2013 introduces a whole new user interface, cloud integration and much, much more! It also introduces Click2Run, which allows for quick installation and streaming of apps until installed.
Office 2013 can be downloaded now from here! It requires either Windows 7 or Windows 8 for install, looks like Windows Vista and below are left behind this time.Microsoft, Office 15, Office 2013