title: export chinese, japanese character in .csv file + mvc3
body: <p>I am using following code to export the content to .cvs file
  which also support chinese and japanese characters.</p>
  
  <pre><code>public ActionResult Download(strng accnumber)
  {
       string csvContent = "东西，东西，东西, hi";
       var data = Encoding.UTF32.GetBytes(csvContent );
       string filename = "CSV_" + accnumber + ".csv";
       return File(data, "text/csv", filename);
  }
  </code></pre>
  
  <p>when i export my file i am not getting proper chinese or japanese characters. what is missing?</p>
  
  <p>i have used UTF32 encoding to support it.</p>
  
  <p><strong>Edited</strong>:</p>
  
  <p>i have noticed that opening my .csv file in notepad shows perfect characters but ms-excel doesn't.</p>