20:20:36 Enable Cell Caching using MemoryGZip method<br />20:20:36 Create new PHPExcel object<br />20:20:36 Set properties<br />20:20:36 Add data<br />20:20:36 Hide 'Phone' and 'fax' columns<br />20:20:36 Set outline levels<br />20:20:36 Freeze panes<br />20:20:36 Rows to repeat at top<br />20:20:37 Write to Excel2007 format<br />20:20:40 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 2.2028 seconds<br />20:20:40 Current memory usage: 27.75 MB<br />20:20:40 Peak memory usage: 31 MB<br />20:20:40 Done writing file<br />File has been created in /var/www/ldapadmin/vendor/phpoffice/phpexcel/Examples<br />