FormatMask
property FormatMask: string read FFormatMask write SetFormatMask;Remarks
While rendering output of Cell, inside GetDisplayText method Column combine Cell's value and standard FormatFloat Delphi function.
Example:
NxNumberColumn61.FormatMask := '#,##0.00';For value 12345 output will be 12,345.00
For more details please look for FormatFloat function inside Delphi help.