10:03:35 Enable Cell Caching using MemoryGZip method<br />10:03:35 Create new PHPExcel object<br />10:03:35 Set properties<br />10:03:35 Add data<br />10:03:35 Hide 'Phone' and 'fax' columns<br />10:03:35 Set outline levels<br />10:03:35 Freeze panes<br />10:03:35 Rows to repeat at top<br />10:03:36 Write to Excel2007 format<br />10:03:37 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.2423 seconds<br />10:03:37 Current memory usage: 10 MB<br />10:03:37 Peak memory usage: 16 MB<br />10:03:37 Done writing file<br />File has been created in /var/www/minidev/vendor/phpoffice/phpexcel/Examples<br />