I searched on help menu for hiding formulas on the sheet, so what I found was
this

Switch between displaying formulas and their values on a worksheet

Press CTRL + ` (grave accent).

but I've got no clue what it means to press control + ?? so what is this
grave accent?
how do I get it?
please help!

What I really want to do is in a worksheet what I have made for some
calculation pupose for other users too, to avoid any kind of overwriting in
those cells containing formulas, to be protected+hide the formulas anyhow so
what should be done to do this please somebody tell me.

thanks in advance