title: how to combine merge_range and write_formula with xlsxwriter python
body: <p>this is the code that i'm trying. but its not working.</p>
  
  <pre><code>import xlsxwriter
  ....
  sheet.merge_range.write_formula('F16:H16', """IF('Original data'!B4&lt;&gt;"",'Original data'!B4,"")""", center)
  </code></pre>
  
  <p>Is there another code that can put both of them become one? i'm already doing some research and don't get any. thanks in advance</p>