title: How to style xlsx files in node.js
body: <p>I'm exporting a file generated by xlsx.js with my node.js express application server. I'd like to know how to put bold in first line, set auto width and (eventually) colour borders.
  For example, the first line of the worksheet looks like:</p>
  
  <pre><code>var data = [[
          {value:"EXTREMELY LONG TITLE 1", bold: 1, autoWidth:true},
          {value:"TITLE2"},
          {value:"TITLE3"}
      ]];
  </code></pre>
  
  <p>My actual result is that these three cells are correctly printed and served. The attributes <code>bold</code> and <code>autoWidth</code> are ignored. How can I get this to work?</p>