By default, all cells are locked, but only if the sheet is protected. To
turn on sheet protection: Select Tools/Protection/Protect Sheet from Excel's
menu.

You'll probably want to leave some cells unlocked. To do so, first
unprotect the sheet. then select the cells you want to unlock. Then from
the Excel menu select Format/Cells. Clock on the Protection tab and make
sure the checkbox labeled "Locked" is not checked. Finally, protect the
sheet again.
HTH
Phil Webb


"Mohamed" wrote in message
...
How to lock a cell which contains a formula