title: I need to show excel sheet and ppt file in Wpf control without installing MS office
body: <p>I tried with </p>
  
  <ol>
  <li><p>Webbrowser Control:</p>
  
  <p>When i give the url of file to Webbrowser control of Wpf, it opens the file 
   using MS office.
  Code Snippet: <code>webbrowser1.Navigate(new Uri(@"D:\ExcelFiles\data.xls");</code></p>
  
  <hr></li>
  <li><p>DocumentViewer:</p>
  
  <p>It requires <code>Microsoft.Office.Interop.Excel.dll</code> to achieve.</p>
  
  <hr></li>
  </ol>
  
  <p>I dont want to use MS office or any other installed application to display. Want to render it in any control of WPF only.
  So i have to use OpenSource dll to achieve it. </p>
  
  <p>I used <code>spire.DocViewer.Wpf.dll</code> to render word document (<a href="https://www.e-iceblue.com/Tutorials/Spire.DocViewer/Spire.DocViewer-Program-Guide/How-to-Open-and-Close-Word-Files-using-Spire.DocViewer.html" rel="nofollow noreferrer">WordDoc viewer</a>).  Like wise, i need to display excelsheet and ppt files. </p>
  
  <p>Please suggest any open source dll to achieve this.</p>