How To Generate Extent Reports In Selenium

testng.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="Extent Report Tests">
   <test name="Tests">
       <classes>
           <class name="CloudGrid.InputFormTests" />
           <class name="CloudGrid.AlertTests"></class>
       </classes>
   </test> <!-- Test -->
</suite> <!-- Suite -->