Formulas do not work in excel.
 

Formulas have been working but suddenly they will not add or subtract unless
we click on the target cell. This happens in all excel files even in new
worksheets.

Try going to tools-option-calculation and click automatic if it is on manual.

Let me know if it works.

B

"Flintlock98" wrote:

Formulas have been working but suddenly they will not add or subtract unless
we click on the target cell. This happens in all excel files even in new
worksheets.