title: Upload Excel file with Japanese font
body: <p>I have a Japanese Excel ('.xls') file, I need to upload it to server using <code>IExcelDataReader</code>. below is my code:</p>
  
  <pre><code>IExcelDataReader reader;
  DataSet dataSet = null;
  if (fileExtension == ".xlsx")
  {
      // .xlsx
      reader =        ExcelReaderFactory.CreateOpenXmlReader(file.InputStream);
  }
  else if (fileExtension == ".xls")
  {
      // .xls
      reader = ExcelReaderFactory.CreateBinaryReader(file.InputStream);
  }
  else
  {
      response.Error =
          string.Format(Extensions.LabelFor(labelModels, null, 42), file.FileName);
      return response;
  }
  // cast to data set
  dataSet = reader.AsDataSet();
  DataTable dataTable = dataSet.Tables[sheetName];
  </code></pre>
  
  <p>But I can not get Japanese values. Everything is OK with English values.
  Please let me know why I can not upload <code>.xls</code> file with Japanese language?  </p>
  
  <blockquote>
    <p>It's OK when I change file to <code>.xlsx</code>!</p>
  </blockquote>