Bug 315050 [Automation][Regression]Image size is different from golden file when preview as xls
engine/org.eclipse.birt.report.engine.emitter.prototype.excel/src/org/eclipse/birt/report/engine/emitter/excel/layout/ExcelLayoutEngine.java
else if ( SheetData.DATE == ExcelUtil.getType( value ) )
		{
			String format = ExcelUtil.getPattern( value, (String) entry
					.getProperty( StyleConstant.DATE_FORMAT_PROP ) );
			entry.setProperty( StyleConstant.DATE_FORMAT_PROP, format );
			type = Data.DATE;
		}
		entry.setProperty( StyleConstant.DATA_TYPE_PROP, type );
	}
	private Data createDateData( Object txt, StyleEntry entry,
			String timeFormat, String dlocale )
	{
		ULocale dateLocale = getLocale( dlocale );
		timeFormat = ExcelUtil.parse( txt, timeFormat, dateLocale );
		timeFormat = DateTimeUtil.formatDateTime( timeFormat, dateLocale );
		entry.setProperty( StyleConstant.DATE_FORMAT_PROP, timeFormat );
		entry.setProperty( StyleConstant.DATA_TYPE_PROP, SheetData.DATE );
		return createData( txt, entry );
	}
	private ULocale getLocale( String dlocale )
	{
		return dlocale == null ? locale : new ULocale( dlocale );
	}
	protected void addData( SheetData data )
	{
		XlsContainer container = getCurrentContainer( );
		container.setEmpty( false );
		if ( data.getStartX( ) == data.getEndX( ) )
			return;
		int col = axis.getColumnIndexByCoordinate( data.getStartX( ) );