The address of the selected cell / first cell of the selected range is displayed in the Name bar. A selected cell or a selected range is highlighted by thick border around it. A selected cell or a selected range is ready to receive commands.
A cell can be selected by moving the cursor to the cell and clicking the left mouse button. Alternatively, you can select the cell by using Keyboard keys, as stated in the table below:
| Arrow keys | Move one cell up, down, left, or right |
| Tab | Move one cell to the right |
| Shift+Tab | Move one cell to the left |
| Home | Move to the beginning of the row |
| Ctrl+Home | Move to the beginning of the worksheet |
| Ctrl+End | Move to the last cell on the worksheet, in the bottom-most used row of the rightmost used column |
| Page Down | Move down one screen |
| Page Up | Move up one screen |
| Alt+Page Down | Move one screen to the right |
| Alt+Page Up | Move one screen to the left |
| Ctrl+Backspace | Scroll to display the active cell |
To perform a function on a group of cells, those cells must be selected by highlighting them. To highlight cells B2 to E10:

Alternatively, a range of cells can also be selected by holding down the left mouse button and dragging the mouse over the range i.e. hold down the left mouse button in Cell B2 and drag it to Cell E10.
You can select and highlight the entire worksheet by a left mouse click on the box at top left of the worksheet formed by intersection of Column and Row headers or by pressing 'Ctrl + A' keys.
