title: How can I read, replace and write very large files?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/4273699/how-to-read-a-large-1-gb-txt-file-in-net">How to read a large (1 GB) txt file in .NET?</a>  </p>
  </blockquote>
  
  
  
  <p>What is the optimal way in C# to read an file, replace some strings and write in another new file? I need to do this with very large files like 8GB or 25GB.</p>