title: Unable to load .xls file using Gembox in C#
body: <p>I wanted to load <code>.xls</code> file(Type: <code>97-2003</code> spreadsheet) using C#.
  I am using Gembox library.</p>
  
  <p>When I used below command, I encountered "<strong>file contains corrupted data.</strong>" as error.</p>
  
  <pre><code>ExcelFile ef = ExcelFile.Load(filepath, XlsxLoadOptions.XlsxDefault);
  </code></pre>
  
  <p>When I removed XlsxLoadOptions parameter than I am getting "<strong>Reading error: file is not a valid OLE2 Compound File.</strong>"</p>
  
  <p>I am new to C# and unable to debug the root-cause of the issue.
  Please help!</p>