I've seen this post and it's work. But the percent is not converted.
Ex : In the xls, C1 = 0,0226115615112098% After the convertion, in the CSV, C1 = ?0.2f%
I don't find how specify the good format in this case.
The post example is :
require_once 'Classes/PHPExcel/IOFactory.php';
$inputFileType = 'Excel5';
$inputFileName = 'YOUR_EXCEL_FILE_PATH';
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
$objPHPExcelReader = $objReader->load($inputFileName);
$loadedSheetNames = $objPHPExcelReader->getSheetNames();
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcelReader, 'CSV');
foreach($loadedSheetNames as $sheetIndex => $loadedSheetName) {
$objWriter->setSheetIndex($sheetIndex);
$objWriter->save($loadedSheetName.'.csv');
}