title: C1Excel error on load excel file
body: <p>I tried to load excel file using C1Excel. Everything works fine until I loaded excel file and had activex with it. The error said:</p>
  
  <pre><code>This file cannot be read because it is password-protected.
  </code></pre>
  
  <p>But, It is no need password to open the file.
  The code is below.</p>
  
  <pre><code>C1XLBook book = new C1XLBook();
  book.Load("excelfile.xls"); //Here is the error code appear
  foreach (XLSheet loopSheet in book.Sheets)
  {
      //code
  }
  </code></pre>
  
  <p>So, if anyone ever find this problem and solved it, please to share.</p>
  
  <p>I have tried that file can be loaded by <code>Microsoft.Office.Interop.Excel</code>.
  Is there any method or something that C1Excel can load data from it. I wish I could use <code>Microsoft.Office.Interop.Excel</code> to replace C1Excel, but the project has code already with <code>C1Excel</code> every where.</p>
  
  <p>Thank you</p>