Microsoft Office is a suite of desktop applications created by Microsoft that includes Word, Excel, PowerPoint, Outlook, and Access. It was first released in 1989 and included Word, Excel, and PowerPoint. Over time, additional applications like Outlook and Access were added. There have been many versions of Office released for Windows, Mac, and other operating systems. The latest version is Office 2007, which introduced new file formats and a significantly redesigned interface. While Office is widely popular and useful, some criticisms include that updates are often needed to fix stability issues and that the new 2007 interface is more difficult to use.