title: an app or a batch file script to remove special characters from text
body: <p>I love this online tool <a href="http://textmechanic.co/" rel="nofollow">http://textmechanic.co/</a> but it lacks another important feature which is to delete special characters such as %, %, [, ), *, ?, ', etc.. except for _, -, and . from a large quantity of text.</p>
  
  <p>I am looking for an online tool or a small windows utility or a batch script that can do this.</p>