18:25:21 Create new PHPExcel object<br />18:25:21 Set document properties<br />18:25:21 Add data<br />18:25:21 Set data validation<br />18:25:21 Write to Excel2007 format<br />18:25:21 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0068 seconds<br />18:25:21 Current memory usage: 2 MB<br />18:25:21 Peak memory usage: 2 MB<br />18:25:21 Done writing file<br />File has been created in /home/acadexam/edu.acadexam.ru/vendor/phpoffice/phpexcel/Examples<br />