Please note, CellValueType is an enum which has multiple members. There is no such mapping in it. Moreover, Cell.StringValueWithoutFormat attribute is obsolete and will be removed soon. You may get the value object and format it according to the value type for your requirement. You may use getStringValue() method while specifying CellValueFormatStrategy.
See the sample code segment for your reference.
e.g., Sample code:
Workbook workbook = new Workbook("Book1.xlsx");
Worksheet worksheet = workbook.getWorksheets().get(0);
Cell cell = worksheet.getCells().get("A1");
switch (cell.getType()) {
case com.aspose.cells.CellValueType.IS_BOOL:
System.out.println(" Boolean Value: " + cell.getBoolValue());
break;
case com.aspose.cells.CellValueType.IS_DATE_TIME:
System.out.println(" Date Value: " + cell.getDateTimeValue());
break;
case com.aspose.cells.CellValueType.IS_NUMERIC:
System.out.println(" Numeric Value: " + cell.getDoubleValue());
break;
case com.aspose.cells.CellValueType.IS_STRING:
System.out.println(" String Value: " + cell.getStringValue(CellValueFormatStrategy.NONE));
break;
case com.aspose.cells.CellValueType.IS_NULL:
System.out.println(" Null Value");
break;
}