title: VSCode: How do I search and replace text in only opened files?
body: <p>I need to replace some text in <strong>only the files that are currently opened</strong>.</p>
  
  <p>Such as my project contains <code>a.html</code>, <code>b.html</code> and <code>c.html</code>; but I opened only <code>a.html</code> and <code>b.html</code>, so the replace won't affect <code>c.html</code></p>
  
  <p>Is there a way to find and replace the occurrences at once instead of going through those files one by one?</p>