title: How to upgrade php version in wamp?
body: <p>Currently I'm using php version 5.1.6 in wamp server. I'm trying to use phpexcel library to read .xls and .xlsx files. Phpexcel library  minimum  requirement is php version 5.2.0. So how can i solve this issue or how to upgrade php version.</p>
  
  <p>Thanks in advance.</p>