Microsoft Office, the proprietary commercial office productivity software from Microsoft.
Microsoft Office is a proprietary commercial office productivity software suite consisting of several desktop applications, servers (Sharepoint for example) and services that may be used on Microsoft Windows and Mac OS X operating systems.
The most commonly used applications are:
- Word (word processor)
- Excel (spreadsheet tool)
- PowerPoint (presentation tool)
- Outlook (personal information manager and communication tool)
Wikipedia provides a list of Office components.