Table data extraction with Selenium 2

gistfile1.java

WebDriver webDriver = new FirefoxDriver();
webDriver.navigate().to("http://example.com/some/page");

// simplified: find table which contains the keyword
WebElement tableElement = webDriver.findElement(By.xpath("//table[contains(text(), 'Username')]"));

// create empty table object and iterate through all rows of the found table element
ArrayList<HashMap<String, WebElement>> userTable = new ArrayList<HashMap<String, WebElement>>();
ArrayList<WebElement> rowElements = tableElement.findElements(By.xpath(".//tr"));

// get column names of table from table headers
ArrayList<String> columnNames = new ArrayList<String>();
ArrayList<WebElement> headerElements = rowElements.get(0).findElements(By.xpath(".//th"));
for (WebElement headerElement: headerElements) {
  columnNames.add(headerElement.getText());
}

// iterate through all rows and add their content to table array
for (WebElement rowElement: rowElements) {
  HashMap<String, WebElement> row = new HashMap<String, WebElement>();
  
  // add table cells to current row
  int columnIndex = 0;
  ArrayList<WebElement> cellElements = rowElement.findElements(By.xpath(".//td"));
  for (WebElement cellElement: cellElements) {
    row.put(columnNames.get(columnIndex), cellElement);
    columnIndex++;
  }
  
  userTable.add(row);
}

// finally fetch the desired data
WebElement cellInSecondRowFourthColumn = userTable.get(1).get("Email");

Can you please tell how to write a web table data into excel using poi