Todo List
PHPExcel_Writer_Excel2007_WriterPart | --PHPExcel_Writer_Excel2007_ContentTypes
PHPExcel_Writer_Excel2007_ContentTypes
string writeContentTypes( [ $pPHPExcel = null])
Write content types to XML format
string _getImageMimeType( [string $pFile = ''])
Get image mime type
void _writeDefaultContentType( [ $objWriter = null], [string $pPartname = ''], [string $pContentType = ''])
Write Default content type
void _writeOverrideContentType( [ $objWriter = null], [string $pPartname = ''], [string $pContentType = ''])
Write Override content type