Contains the text of the cell that is going to be exported. You might modify this value in order to export something different.  

Note that this property is of type TCellValue, and while it will always originally contain a string, you might return a TDateTime or a double here, and it will be entered directly into Excel.  

If you change this value not to be a string, then what you set in CellFormat doesn't matter, since the type of the TCellValue will be used instead.  

property Value: TCellValue;