Bug 330326 Special Characters in ExcelEmitter not correct (Encoding?)
engine/org.eclipse.birt.report.engine.emitter.prototype.excel/src/org/eclipse/birt/report/engine/emitter/excel/ExcelWriter.java
* @throws FileNotFoundException
	 * 
	 */
	private void initializeWriterAsTempWriter( ) throws FileNotFoundException
	{
		tempFilePath = context.getTempFileDir( )
				+ "_BIRTEMITTER_EXCEL_TEMP_FILE"
				+ Thread.currentThread( ).getId( );
		FileOutputStream out = new FileOutputStream( tempFilePath );
		tempWriter = new ExcelXmlWriter( out, context );
		writer = tempWriter;
	}
	public void endSheet( )
	{
		writer.endSheet( );
	}
	public void startRow( )
	{
		writer.startRow( );
	}
	public void outputData( int col, int row, int type, Object value )
	{
		writer.outputData( col, row, type, value );
	}
	public String defineName( String cells )
	{
		return writer.defineName( cells );
	}
}