Make sure your cell isn't formatted as text.
Make sure there aren't spare spaces or other non-printing characters before
the equals sign at the start of the formula.
Press CTRL + ` (grave accent) to toggle between displaying the formula or
its result.
--
David Biddulph

"xokaido" wrote in message
...
When I click on the formula button it appears all right but does not
calculate values of cells... could anyone help me???