16:15:55 Create new PHPExcel object
16:15:55 Set document properties
16:15:55 Add some data
16:15:55 Rename worksheet
16:15:55 Set document security
16:15:55 Set sheet security
16:15:55 Write to Excel2007 format
16:15:55 File written to 11documentsecurity.xlsx
Call time to write Workbook was 0.0112 seconds
16:15:55 Current memory usage: 6 MB
16:15:55 Peak memory usage: 6 MB
16:15:55 Done writing file
File has been created in /var/www/chart_maker/vendor/phpoffice/phpexcel/Examples