wammer
No built-in function.
User defined function.....
Function IsFormula(Cell)
Application.Volatile
IsFormula = Cell.HasFormula
End Function
Copy/paste to a general module in your workbook
Usage is: =ISFORMULA(A1)
Alternative if you just want to find which cells have formulas..........
Select a range of cells and F5>Special>Formulas>OK
Gord Dibben Excel MVP