This function tests whether a value, an expression, or contents of a referenced cell has any data type other than text.
ISNONTEXT(cellreference)
ISNONTEXT(value)
ISNONTEXT(expression)
Specify a cell reference, a numeric or text value, or an expression for the argument.
Use this function to test the contents of a cell, a numeric or text value directly, or a function or expression.
This function returns TRUE if the value refers to a blank cell.
Accepts any data type for an argument. Returns Boolean (TRUE or FALSE) data.
ISNONTEXT(A3)
ISNONTEXT(R3C1)
ISNONTEXT(12) gives the result TRUE
ISNONTEXT("Total") gives the result FALSE