title: Find and replace value in Excel using C#
body: <p>How can I find some value from cell and replace by new value in Excel?</p>
  
  <p>I tryed this but it doesn't works:</p>
  
  <pre><code>Microsoft.Office.Interop.Excel.Application xlapp = new Microsoft.Office.Interop.Excel.Application();
  Microsoft.Office.Interop.Excel.Workbook wb =default(Microsoft.Office.Interop.Excel.Workbook);
  
  wb = xlapp.Workbooks.Open(FileName.ToString());
  
  wb.Worksheets[0].Cells.Replace("find","replace");
  </code></pre>