16:28:56 Enable Cell Caching using MemoryGZip method<br />16:28:56 Create new PHPExcel object<br />16:28:56 Set properties<br />16:28:56 Add data<br />16:28:56 Hide 'Phone' and 'fax' columns<br />16:28:56 Set outline levels<br />16:28:56 Freeze panes<br />16:28:56 Rows to repeat at top<br />16:28:57 Write to Excel2007 format<br />16:28:58 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4410 seconds<br />16:28:58 Current memory usage: 8 MB<br />16:28:58 Peak memory usage: 14 MB<br />16:28:58 Done writing file<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo/vendor/phpoffice/phpexcel/Examples<br />