This function tests whether a value, an expression, or contents of a referenced cell has text data.
ISTEXT(cellreference)
ISTEXT(value)
ISTEXT(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.
If the data type of the argument is text, this function returns TRUE. If the data type of the argument is not text, this function returns FALSE. If the argument refers to an empty cell, this function returns FALSE.
Accepts any data type for an argument. Returns Boolean (TRUE or FALSE) data.
ISTEXT(B3)
ISTEXT(R1C2)
ISTEXT("Total") gives the result TRUE
ISTEXT(12) gives the result FALSE