Changing part of the data in a cell
Sometimes it is necessary to change the contents of cell without removing all of the contents, for example if the phrase “See Dick run” is in a cell and it needs to be changed to “See Dick run fast”. It is often useful to do this without deleting the old cell contents first.
The process is the similar to the one described above, but you need to place the cursor inside the cell. You can do this in two ways.
Using the keyboard
After selecting the appropriate cell, press the F2 key and the cursor is placed at the end of the cell. Then use the keyboard arrow keys to move the cursor through the text in the cell.
Using the mouse
Using the mouse, either double-click on the appropriate cell (to select it and place the cursor in it for editing), or single-click to select the cell and then move the mouse pointer up to the input line and click into it to place the cursor for editing.