The function is especially useful when a numeric data item in a data file contains a non-numeric value, such as "*", "-", or "a". You cannot test the contents of the numeric data item for alphanumeric values because CSPro stores default
as the value of any numeric data item which contains non-numeric values. Therefore, to find out what non-numeric value(s) exist in a data item, you would use this function to return its contents in the form of a string.
The function returns a string containing the item's contents.