public static CellLocation toLocation(String locationRef) {
		final int x = colNameToIndex(locationRef);
		final int y = ReUtil.getFirstNumber(locationRef) - 1;
		return new CellLocation(x, y);
	}
@Test
	public void toLocationTest() {
		final CellLocation a11 = ExcelUtil.toLocation("A11");
		assertEquals(0, a11.getX());
		assertEquals(10, a11.getY());
	}