FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The most efficient way to edit a cell is to hit the F2 key when on the cell. This keeps our hands on the keyboard. You can now move left and right inside the formula using the and symbols. However, if you want to move outside the cell again to modify cell references, hit the F2 again.

Detailed explanation-2: -F2 Edit the active cell and put the insertion point at the end of its contents. Or, if editing is turned off for the cell, move the insertion point into the formula bar. If editing a formula, toggle Point mode off or on so you can use arrow keys to create a reference. Shift+F2 adds or edits a cell comment.