Hi, select all the worksheet and go to Format|cells|protection and unprotect everything. then highlight those cells that you do not want changing and go back to format|cells|protection and check the protection option. Next select the column you want to hide and Format|Columns|hide this column and then go to Tools|protection|Protect sheet.

This will hide this column with the protection password that you choose. However, one word of warning, someone could actually write a formula to specify the column data, since they are only hidden. I.e. if you had hidden column D. you could type in column E '=D1' and fill down and hence see all the information in column D. I do not know how to get around this as yet.

Garry