Indicates whether or not the cell value is prefixed with a single quote.
true, if the cell value contains a leading quote; otherwise, false.
Use the HasQuotePrefix property to obtain cells with a single quote prefix. A leading quote before a cell value indicates that this value should be interpreted as a single text without further conversion to any other type. Thus, a number, date or formula entered with a leading single quote is treated as a text value and cannot be used in calculations.