This will display a Formula Dialog Box which will suggest a default formula which is SUM LEFT in our case. Using Words Equation Editor This is probably the simplest way to add a bar over a letter in Word. Formula bar is very helpful for reviewing and editing formulas in your worksheets.
Open Word and put the cursor in the blank cell at the bottom of the column that has the numbers you want to sum.
Its at the top of the screen. See what works and what doesnt. How to Expand the Visibility of Formula Bar. Just follow the steps below.