To select all cells on a worksheet, use one of the following methods:
- 
            Click the Select All button. 
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            Press CTRL+A. Note If the worksheet contains data, and the active cell is above or to the right of the data, pressing CTRL+A selects the current region. Pressing CTRL+A a second time selects the entire worksheet. 
Tip If you want to select all cells in the active range, press CTRL+SHIFT+*.
 
                         
				 
				