What kind of software is used in current office?

In today's office, the dominating office work software is still Microsoft Office Suite, such as Microsoft Word, Microsoft Excel, etc. IBM Lotus Series also play important roles in certain companies. In addition, Mac and Unix-like open-source operating systems are more and more important players recently, the impact of their office system such as iWork, OpenOffice on future office should be also accounted. Furthermore, web-based office software such as Ajax13,Google Docs & Spreadsheets, ThinkFree Office Online,Zoho Office Suite are also showing a great potential.

Please see also http://en.wikipedia.org/wiki/Comparison_of_office_suites