ISTEXT

Function Reference: ISTEXT

Syntax
=ISTEXT(value)
Purpose / Description
Determines if the value is a texts string. Text strings in Excel worksheets can consist of up to 32,767 characters.
Arguments
Name Type Description
value any The value which is to be examined to determine if it is a text string.
Return Values
Type Specific Value Description
logical TRUE The value argument is a text string.  This includes other value types that have been stored as strings or imported that way.
logical FALSE The value argument is not a text string.
Notes / Comments / Advice / Warnings
Note: As this is a function for determining value type, it does not return errors when an error value is passed, as that is not a reference, so in that case, it returns FALSE.
Note: If a range is formatted with the Text number format, all values entered into those cells after the format is set, are stored as text strings.  Also values entered with the string prefix ('), will be stored as text strings.  They will be recognised by ISTEXT as text strings.
Examples: Open / download sample workbook: ISTEXT.xlsx