13:38:14 Create new PHPExcel object<br />13:38:14 Set document properties<br />13:38:14 Add data<br />13:38:14 Set data validation<br />13:38:14 Write to Excel2007 format<br />13:38:14 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0214 seconds<br />13:38:14 Current memory usage: 3.75 MB<br />13:38:14 Peak memory usage: 3.75 MB<br />13:38:14 Done writing file<br />File has been created in D:\whospost\dvBackup20200407\vendor\phpoffice\phpexcel\Examples<br />