title: Apache POI -- inserting data into specific column/rows and sheets EXCEL w/ Java
body: <p>I have a document in excel that I want to edit or input a data on it using java..I have try it but all I can do is just delete the data in my excel and replace it the data which I just input.I'm using Netbeans for my compiler. My output is GUI/JFrame
  how to Insert data into a specific column, row and sheet??
  example I want to insert it in C12, E11, Sheet1 etc.</p>
  
  <p>Thank you...</p>
  
  <p>I'm doing self study only in Java Coding that's why I don't know much..</p>