MS Excel 2007 allows users to manage large amounts of data, perform calculations, and display information graphically. It uses a worksheet structure with columns labeled A-Z and rows numbered 1-1048756. Cells can be referenced relatively, absolutely, or with a mixed approach. Excel workbooks contain these worksheets and are saved with an .xlsx file extension.

2. MS EXCEL 2007 is a part of the Microsoft office suite.
Features:
1.manage a large amount of data.
2.Manipulate arithmetic calculations on data.
3. Display data in the form of graphs and charts.
4. Oraganise words and numbers accurately.
5.Analyze data very conveniently.

3.  A worksheet consists of columns and rows,
the columns are represented vertically from
left to right.They are labeled using lettersA
to Z and further as AA,AB,AC and so on.
 The rows are represented horizontally from
top to bottom and are labeled using numbers
1,2,3 and so on.
 A worksheet has 16,348 columns and
1,048,576 rows.

5.  There are three types of cell addressing
 a) Relative reference
 b)Absolute reference
 c) Mixed reference
e.g. of relative reference - =A1
e.g of absolute reference = $A$1
e.g. of mixed reference - $A1 or A$1

6. Referencing techniques can be observed by
taking a cell address and pressing f4 key.
The address of the first cell is A1 whereA is the
column name and 1 is the row number.
e.g. b7 cell refers to column B and row no. 7.
An Excel document is called aWorkbook.
Workbooks are default, are titled Book1, Book2
and so on.

7.  A Ms Excel 2007 workbook is saved by .xlsx
extension.
 The shortcut key to save a workbook is Ctrl+S
 The shortcut keys to-
 to save and close a workbook is Ctrl+F4
 To save,close and exit - Alt +F4