12:37:50 Create new PHPExcel object<br />12:37:50 Set document properties<br />12:37:50 Add data<br />12:37:50 Set data validation<br />12:37:50 Write to Excel2007 format<br />12:37:50 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0242 seconds<br />12:37:50 Current memory usage: 4 MB<br />12:37:50 Peak memory usage: 4 MB<br />12:37:50 Done writing file<br />File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples<br />