Refrences "

http://library.thinkquest.org/J0110054/definition.html

http://mashable.com/2008/02/05/forget-excel-14-online-spreadsheet-applications/

http://www.youtube.com/watch?v=HdOLxR_NlrQ

http://www.technorms.com/9366/libreoffice-detailed-review

http://www.cecs.org.za/index.php/courses/6-icdl.html

http://www.technorms.com/9366/libreoffice-detailed-review