EXCEL ASSINGMENT

Microsoft Excel (full name Microsoft Office Excel) is a spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables and a macro programming language called VBA (Visual Basic for Applications). It has been a very widely applied spreadsheet for these platforms, especially since version 5 in 1993. Excel forms part of Microsoft Office. The current versions are Microsoft Office Excel 2010 for Windows and 2008 for Mac.

Excel	Standard File Extension
Format Extension	Main spreadsheet format which holds data in worksheets, charts, and macros
Toolbar .xlb	The file extension where Microsoft Excel custom toolbar settings are stored.
Chart .xlc	A chart created with data from a Microsoft Excel spreadsheet that only saves the chart. To save the chart and spreadsheet save as .XLS. >XLC is not supported in Excel 2007.
Archive .xlk	A backup of an Excel Spreadsheet

for more information,please log on to:
http://people.usd.edu/~bwjames/tut/excel/