title: How to write C# code to open an excel file and execute button click event?
body: <p>I need to write a C#.Net program to read an excel file for the below purposes</p>
  
  <ol>
  <li>read excel content and update cell values</li>
  <li>Execute a button click event which is in Excel </li>
  </ol>
  
  <p>Please suggest with a sample codes</p>