02:31:19 Enable Cell Caching using MemoryGZip method<br />02:31:19 Create new PHPExcel object<br />02:31:19 Set properties<br />02:31:19 Add data<br />02:31:19 Hide 'Phone' and 'fax' columns<br />02:31:19 Set outline levels<br />02:31:19 Freeze panes<br />02:31:19 Rows to repeat at top<br />02:31:19 Write to Excel2007 format<br />02:31:21 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.8129 seconds<br />02:31:21 Current memory usage: 20 MB<br />02:31:21 Peak memory usage: 26 MB<br />02:31:21 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />