Bug 206092 Excel doesn't render well a custom datetime format yyyy-MM-dd hh:mm a
engine/org.eclipse.birt.report.engine.emitter.prototype.excel/src/org/eclipse/birt/report/engine/emitter/excel/ExcelUtil.java
{
	public static String ridQuote( String val )
	{
		if ( val.charAt( 0 ) == '"' && val.charAt( val.length( ) - 1 ) == '"' )
		{
			return val.substring( 1, val.length( ) - 1 );
		}
		return val;
	}
	
    public static String formatDate( Object data )
	{
    	if(data == null) {