title: Cannot open Jmeter file in Jmeter 3.3
body: <p>I recently updated Jmeter 3.3 and I am unable to open the old file.
  Can you please help? 
  <a href="https://i.stack.imgur.com/lGK5J.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lGK5J.png" alt="enter image description here"></a></p>