src/org/tiefaces/components/websheet/utility/CellUtility.java
private static CellStyle getCellStyleFromSourceCell(final Sheet destSheet, final Cell sourceCell) {
		Workbook wb = destSheet.getWorkbook();
		// Copy style from old cell and apply to new cell
		CellStyle newCellStyle = wb.createCellStyle();
		newCellStyle.cloneStyleFrom(sourceCell.getCellStyle());
		return newCellStyle;
	}
private static CellStyle getCellStyleFromSourceCell(final Sheet destSheet, final Cell sourceCell) {
		Workbook wb = destSheet.getWorkbook();
		// Copy style from old cell and apply to new cell
		CellStyle newCellStyle = wb.createCellStyle();
		newCellStyle.cloneStyleFrom(sourceCell.getCellStyle());
		return newCellStyle;
	}
create cell style from source cell.

@param destSheet
dest sheet.
@param sourceCell
source cell.
@return cell style.