title: Display 0 instead of error value in Excel cell with POI
body: <p>HI all , 
  I have used a POI API and make excel sheet. I have calculated some value from cell with <code>cell.setCellFormula("...")</code> like calculating percentage , sum, etc. </p>
  
  <p>Now if there is value like 0 in division formula then it will give me cell value like #DIV/0! . I want to replace that with <code>n/a</code> instead of #DIV/0! </p>
  
  <p>Any suggestions how to achieve this?</p>