Hi,
Protecting the sheet, but first you have to ensure Protection in the cell is
set up to locked
go to the cell, right click on the mouse, format cell, protection, check
Locked box, then protect your sheet. Nobody will be able to do anything in
that cell just read it
While content and formula are treated the same, you can format cells -
protections, and uncheck the locked checkbox for specific cells. Then, goto
to Tools-Protection-Protect sheet, you'll see various options that can
control whether users can edit the format of the cells or not.
Note: Under the cell format - protection tab, checking the "hidden" option
will make it so that the formula is not visible when sheet is protected.