Microsoft Excel 2010
Introduction,
Microsoft Excel 2010 is an excellent program for organization, formatting and calculating numeric data. Excel display data in a row-and- column format, with grid lines between the rows and column, similar to books or graph paper. Its file extension is .xlsx. 
Work sheets
Microsoft Excel consists of worksheet. Each worksheet contain columns and rows. The columns are lettered A to Z and then continuing with AA, AB, AC, and so on to XFD (16384); the rows are numbered 1 to 1,048,576.
The Interface of Excel, Cell: The intersection of a column and a row. Information is stored in cells.
Cell Reference: Address, consisting of a column and a row IDs of a specific cell.
Column: A vertical group of cells. Total no of column are 16,384.
Formula: A Self-made method of calculation is called formula.
Function: A pre-defined method of calculating is called function.
Range: A group of cells.
Row: A horizontal group of cells. Total no of rows are 1,048,576.
Value: A number that can be used in an Excel calculation.
Worksheet: Combinations of column and rows within a sheet is called worksheet
Workbook: A collection of worksheet contained within a single file.
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