title: Trim spaces in header of an excel file in PHP
body: <p>The user is uploading an excel file and if there are spaces in the header I  have to remove it and upload .Is it possible using PHP ?</p>
  <p>My excel file is like this and there as spaces in the header.I need to remove it and then only transfer the file to server</p>
  <p><a href="https://i.stack.imgur.com/7pMko.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7pMko.png" alt="enter image description here" /></a></p>