Introduction: Excel is Microsoft's popular spreadsheet software that is used to organize, manipulate, and chart data. It can be used for statistical analysis, and for the calculation and display of complex mathematical formulas. Excel can also create business plans, business forms, accounting worksheets, and virtually any other document that contains calculated numbers. While Excel is primarily known for its strengths in working with spreadsheets and creating graphs, the newer versions of Excel have powerful features for web publishing and data management as well.