title: NPOI - Loading an Excel file causes Wrong Local header signature: 0xE011CFD0
body: <p>Has anybody an idea what may cause this error</p>
  
  <blockquote>
    <p>'Wrong Local header signature: 0xE011CFD0'</p>
  </blockquote>
  
  <pre><code>var path = @"C:\Excel.xls";
  
  using (var fs = File.OpenRead(path))
  {
      var wb = new XSSFWorkbook(fs);
  }
  </code></pre>
  
  <p>Im using: <a href="https://github.com/dotnetcore/NPOI" rel="noreferrer">https://github.com/dotnetcore/NPOI</a></p>