• Spreadsheet definition
   

• Entering Data.
   

• Saving, closing, and printing.
   

• Changing column width.
   

• Creating headers and footers.
   

• Selecting cell ranges by highlighting.
   

• Formula calculations.
   

• Using cell references in formulas.
   

• Copy adjacent cells and formulas.
   

• Enter formulas by pointing.

Saving, Closing, and Printing

Saving:
There are numerous ways in which you could save a spreadsheet. A spreadsheet could be saved by clicking on "File" from the menu toolbar then clicking on "Save", or you could click on the save icon () on the standard toolbar.

Printing:
In order to print your page, you could first print preview it by clicking on "File" on the menu toolbar, then clicking on "Print Preview" (look at image above), or you could click on the "Print Preview" icon () on the standard toolbar. This would take you to a window where you could view your spreadsheets as they would look like when they are printed out. You could then print your page by clicking on the "File" on the menu toolbar, then clicking on the "Print" button. This would bring up a dialog box in which you could choose to change preferences such as printing more than one page, or printing a specific page. When you are ready to print, click on "Ok" on the dialog box. Another way to print is to click on the print icon () on the standard toolbar.
Note: Clicking on the print icon would directly print one copy of your spreadsheet without bringing up the dialog box.
Tip: Always save your work before printing.

Closing:
Closing and exiting a spreadsheet are two different commands. When you close a spreadsheet, you are leaving Microsoft Excel open, but only closing the current spreadsheet you are on. When you Exit, you are shutting down the whole Excel program.
Note: Always save before you close or exit your work. 
Steps to closing:
1) Click on "File" on the menu toolbar
2) Click on "close"
Steps to exit:
1) Click on "File" on the menu toolbar.
2) Click on "Exit"

Shortcut Actions:
Saving: You could save quickly by holding "CTRL" and press on the letter "S"
Printing: You could print quicker by holding "CTRL" and pressing on the letter "P". Be careful because it will print a copy without bringing up the dialog box.
Closing: There is no shortcut to close a spreadsheet, but to exit you could either click on the "X" on the top right hand of your Excel program, or you could hold down "ALT" and press on the "F4" button.