Some additional repos to consider:
taylorren/phpexcel — Manipulating Excel with PHPExcel (using https://github.com/PHPOffice/PHPExcel)
arendjantetteroo/PHPExcel — PHPExcel for Symfony2
ergonlogic/phpexcel — Copy of PHPExcel to work around dumb license dialog
Once a week...... I send out a list of most interesting PHP libraries and apps.
Want to get it?