/** * Returns the element at the given column in "Excel style" notation. * <p> * Therefore <b>"A"</b> will return the first element (which is at index 0). <b>"Z"</b> will return the 26th * element * (at index 25). <b>"AH"</b> will return the 34th element (at index 33). * * @param excelStyleIndex a column index in "Excel Notation" (A, B, ..., AA, AB, ...) * @return the element at the given index wrapped as value or an empty value if no such element exists */ @Nonnull public Value at(@Nonnull String excelStyleIndex) { return at(convertExcelColumn(excelStyleIndex)); }