11:22:33 Enable Cell Caching using MemoryGZip method<br />11:22:33 Create new PHPExcel object<br />11:22:33 Set properties<br />11:22:33 Add data<br />11:22:33 Hide 'Phone' and 'fax' columns<br />11:22:33 Set outline levels<br />11:22:33 Freeze panes<br />11:22:33 Rows to repeat at top<br />11:22:34 Write to Excel2007 format<br />11:22:35 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4103 seconds<br />11:22:35 Current memory usage: 17.75 MB<br />11:22:35 Peak memory usage: 20.5 MB<br />11:22:35 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />