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_ _ _icrosoft Office is a set of office software developed by Microsoft, which can run on Microsoft Windows, Windows Phone, Mac series, iOS and Android. Like other office applications, it includes federated servers and Internet-based services. Since the 2007 version of Office, it has been called "Office System" instead of "Office Suite", which reflects the fact that they include servers.

_ _ _ffice was originally a promotional name, which appeared in1early 1990s, referring to a collection of software sold separately before. At that time, the main promotion focus was: buying a collection saved a lot of money than buying it alone. The original versions of Office included Word, Excel and PowerPoint. "Professional Edition" includes Microsoft Access, and Microsoft Outlook did not exist at that time. With the change of time, Office applications are gradually integrated and enjoy functions such as spelling and grammar checking, OLE data integration and VBA scripting language. Microsoft has expanded Office into a development platform, where third-party software can be downloaded from specialized stores.

_ Office is often the standard for making document files. It has some functions that other products do not have, but other products also have functions that Office lacks. Since 2007, Microsoft Office System has had a completely different user interface from the previous version. This interface is called Ribbon interface, which is used in Microsoft Office 20 10, Microsoft Office 20 13 and Microsoft Office 20 16.