With the date written in and formatted, you can now enter the formula to subtract the date. You would enter that in the appropriate cell for your Excel document.

Subtract cells using a dash or minus sign (-) Multiply cells an asterisk (*) Divide cells using a slash (/) 2. Track Your Health Excel can help you track calories, exercise and health goals.

Safeguard your Excel worksheets from accidentally deleting formulas or data sets by locking important cells, while leaving the rest of the worksheet editable.