Used as the second parameter of IRange.specialCells(SpecialCellType,SpecialCellsValue) when the cell type is SpecialCellType.Constants or SpecialCellType.Formulas, to further filter cells by their value type (numbers, text, logical values, or errors).

 worksheet.getRange("A1").setValue("Text");
 worksheet.getRange("B1").setValue(100);
 worksheet.getRange("C1").setValue(true);

 // Find cells containing numeric constants
 IRange numberCells = worksheet.getCells().specialCells(SpecialCellType.Constants, SpecialCellsValue.Numbers);

 // Find cells containing text constants
 IRange textCells = worksheet.getCells().specialCells(SpecialCellType.Constants, SpecialCellsValue.TextValues);