title: What are the main differences between PHPExcel and PhpSpreadsheet?
body: <p>In project of <a href="https://github.com/PHPOffice" rel="noreferrer">PHPOffice</a> there are two projects associated with spreadsheet file formats: </p>
  
  <p><a href="https://github.com/PHPOffice/PHPExcel" rel="noreferrer">PHPExcel</a></p>
  
  <blockquote>
    <p>PHPExcel is a library written in pure PHP and providing a set of classes that allow you to write to and read from different spreadsheet file formats, like Excel (BIFF) .xls, Excel 2007 (OfficeOpenXML) .xlsx, CSV, Libre/OpenOffice Calc .ods, Gnumeric, PDF, HTML, ... This project is built around Microsoft's OpenXML standard and PHP.</p>
  </blockquote>
  
  <p>and </p>
  
  <p><a href="https://github.com/PHPOffice/PhpSpreadsheet" rel="noreferrer">PhpSpreadsheets</a></p>
  
  <blockquote>
    <p>PhpSpreadsheet is a library written in pure PHP and providing a set of classes that allow you to read from and to write to different spreadsheet file formats, like Excel and LibreOffice Calc.</p>
  </blockquote>
  
  <p>What are the main differences between them?</p>