Try hitting f9 to see if the sheet recalculates.

If that works it suggests that auto calculation is switched off.

Go to Tools/Options/Calculations and select automatic to switch back on
again


"KC" wrote in message
...
I can make a formula to add up 10 + 10 and it will not calulate it for me.
Nothing works. I've been using this spreedsheet to keep up with my bills
for
years and it just stopped working today.

What should I do? Thanks,