public boolean removeSheet(String sheetName){		
		int index = workbook.getSheetIndex(sheetName);
		if(index==-1)
			return false;
		
		FileOutputStream fileOut;
		try {
			workbook.removeSheetAt(index);
			fileOut = new FileOutputStream(path);
			workbook.write(fileOut);
		    fileOut.close();		    
		} catch (Exception e) {			
			e.printStackTrace();
			return false;
		}
		return true;
	}