00:16:13 Create new PHPExcel object<br />00:16:13 Set document properties<br />00:16:13 Add data<br />00:16:13 Set data validation<br />00:16:13 Write to Excel2007 format<br />00:16:13 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0129 seconds<br />00:16:13 Current memory usage: 4 MB<br />00:16:13 Peak memory usage: 4 MB<br />00:16:13 Done writing file<br />File has been created in /home/hycmvsgn/heal.co.ke/invoices/vendor/phpoffice/phpexcel/Examples<br />