ISREF (Primitive Spread Function) tests whether a value is a cell reference.

SYNTAX:

ISREF(value)

REMARKS:

Returns 1 (True) if the value argument refers to a cell reference. Returns 0 (False) if the value argument refers to a value that is not a cell reference.

Use the ISREF function to determine whether a value contains a reference to a cell. 

EXAMPLES:

ISREF(A3) = 1 (True)
ISREF(12) = 0 (False)