We are trying to develop an excel export for our ModelAdmin application, and we are trying to use PHPExcel. The problem is that when we do an include of the library, the autoloader of PHPExcel has conflicts with the autoloader of Silverstripe.
Has anyone a solution for this problem (other than include manually every class in PHPExcel)?
Dunno what the autoloader of PHPExcel does, but you can create a empty file with the name "_manifest_exclude" in the PHPExcel folder to prevent the autoloading from Silverstripe. I did this for mPDF and pChart and it works like a charm for me.