title: how to remove warnings in excel generated by POI ?
body: <p>I am using Apache POI for writing content into excel sheet. after generating an excel in all the cells which ever cell has numbers, it contains one blue mark(each cells left top corner). its like a warning. how can i remove them while writing the content to excel? PFA screen shot.<img src="https://i.stack.imgur.com/NSalX.jpg" alt="enter image description here"></p>
  
  <p>Thanks!</p>