title: Parse xls/xlsx/xlsm in Node.js
body: <p>Running in Node.js, I need to be able to parse cell <em>value's</em> from Excel .xls,.xlsx, and .xlsm.</p>
  
  <p>Are there solutions available? I doubt there's a single module out there that will do the trick, so perhaps there is a way to internally convert two of the formats into the third and have a single format parser?</p>
  
  <p>Has anyone else encountered this problem? If so, what kind of solution did you come up with? </p>
  
  <p>Any help is greatly appreciated. Thank you</p>