title: when creating an excel file from java do i need office installed on my system
body: <p>When creating an excel file from java do i need office installed on my system?</p>
  
  <p>I think java using its API must be able to create the .xls or .xlsx file. We will just not be able to open it?</p>
  
  <p>If anyone know the answer please let me know.</p>