title: Convert HTML code into XLS/XLSX
body: <p>I am trying to generate a XLS sheet with multiple sheets, styles, background colors and so on using PHP.
  Right now all data lie in HTML tables. (Sheet1.html, Sheet2.html ...)</p>
  
  <p>Is there any library to convert HTML into one xls file?</p>
  
  <p>Thx</p>