I need to round two values and sum them then. The problem is, I have Czech version of MS Excel, and rounding function is called "Zaokrouhlit"

So my formula looks like =ZAOKROUHLIT(A1, 2) + ZAOKROUHLIT(A2, 2)
Now I'm thinking, what if I send my file to someone that is using excel in different language version, will it work?
So I tried default function =ROUND(A1, 2) + ROUND(A2, 2)

But my version of excel doesn't know anything about such a function.
Fortunatelly, I can use this function inside VBA subroutines, so my question is:
How to use VBA function inside formula?
.Formulaor.FormulaR1C1and avoid using.FormulaLocalor.FormulaR1C1Localproperties in your subroutines.