title: Is it possible to unlock specific cells in a protected sheet (Using Aspose)
body: <p>I'm using Aspose-Cells and java to export excel templates in my system.</p>
  
  <p>In this particular situation I'm generating a spreadsheet where I have two sheets that I want to protect.
  In one of them, I need to let the user edit only 4 cells. All the rest should be protected.
  The simplest implementation should be:</p>
  
  <ol>
  <li>protect the sheet</li>
  <li>unlock each cell I want to let the user edit.</li>
  </ol>
  
  <p>The problem is that I was searching to check if it's possible to do this (protect the entire sheet and unlock only a few cells) and it seems to not to be possible. Please.. tell me I'm wrong and there's a way to do this, otherwise I'll have to lock all the existing cells in the sheet and unlock only 4 of them.. For my experience using another library (PHPExcel), it seems to be very costly in terms of performance (I had to apply it for 1000 rows and more then 40 columns, so it was really costly).</p>