I use in Excel the formula =NETWORKDAYS(A2;B2)for calculating the number of days between the dates in cells A2 and B2. The result is in Cell C2
However, I would like to display a Predifined Text in C2 if the result is zero.

I suppose The Predifined Text can be in the formula bar in a sort of If statement.
If 0 ,OK will be displayed in cell C2)
It does not matter what in the cell will be displayed if result is not zero.

I assume the cell C2 format must then be Text or General
Normally I use Number for C2.

May be, I also can or need to use an other formula?? DateDiff or something like that?? I do not know all possibilities.

Thanks Mario. I always appreciate the support of you guys who do so much to keep things going here :-)

NB. It's important to understand that the underlying data doesn't change. It's still a zero. All that changes is what is displayed (IE. The .Text property as opposed to the .Value).