Wrote this program in Eclipse. DOwnloaded POI 5.0.0 and added it to library by Project->Properties->Java Build Path->Libraries->Added poi-5.0.0.jar and poi-ooxml-5.0.0.jar under classPath. I then get errr NoClassDefFoundError from this line:

HTML Code:
workbook = new XSSFWorkbook(excelBIS);
My entire code:
HTML Code:
		JButton btnBrowse = new JButton("Browse File");
		btnBrowse.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {

				//=========Action here==========
				File excelFile;
		        FileInputStream excelFIS = null;
		        BufferedInputStream excelBIS = null;
		        XSSFWorkbook workbook=null;
		        //Default Path
		        String defaultPath = "C:\\Users\\Philip Chen\\Documents\\dermaGrapher.xlsx";
		        JFileChooser fileChooser=new JFileChooser(defaultPath);
		        int excelChooser=fileChooser.showOpenDialog(null);
		        //Open Button Clicked
			        	excelFIS=new FileInputStream(excelFile);
			        	excelBIS=new BufferedInputStream(excelFIS);
			        	workbook = new XSSFWorkbook(excelBIS);
			        	XSSFSheet excelSheet = workbook.getSheetAt(0);
			        	//Loop through excel columns and rows
			        	for(int row=0;row<10;row++)
			        		XSSFRow excelRow=excelSheet.getRow(row);
			        		XSSFCell excelName = excelRow.getCell(0);
		                    XSSFCell excelDate = excelRow.getCell(1);
		                    XSSFCell excelScore = excelRow.getCell(2);
		                    XSSFCell excelOil = excelRow.getCell(3);
		                    XSSFCell excelHydration = excelRow.getCell(4);
		                    XSSFCell excelMelanin = excelRow.getCell(5);
		                    XSSFCell excelOxygen = excelRow.getCell(6);
		                    XSSFCell excelRedness = excelRow.getCell(7);
		                    model.addRow(new Object[]{excelName, excelDate, excelScore, excelOil, excelHydration,excelMelanin,excelOxygen,excelRedness});
		        	}catch(FileNotFoundException ex)
		        		JOptionPane.showMessageDialog(null, ex.getMessage());
		        	}catch(IOException ex)
		        		JOptionPane.showMessageDialog(null, ex.getMessage());
		        	}finally {
		                try {
		                    if (excelFIS != null) {
		                    if (excelBIS != null) {
		                    if (workbook != null) {
		                } catch (IOException iOException) {
		                    JOptionPane.showMessageDialog(null, iOException.getMessage());
		        //End of function
Any help is appreciated! I am desperate, Thanks!