title: Python: package docx can't open a docx
body: <p>I want to use python to open a word. I use win32com and it works. I find a package named docx and I really think it is very useful. But when I used it to open a wordfile, it raised valueError.</p>
  
  <blockquote>
    <p>valueError: file '1.doc' is not a Word file, content type is    'applicationnd.openxmlformats-officedocument.themeManager+xml'</p>
  </blockquote>