12:17:15 Enable Cell Caching using MemoryGZip method<br />12:17:15 Create new PHPExcel object<br />12:17:15 Set properties<br />12:17:15 Add data<br />12:17:15 Hide 'Phone' and 'fax' columns<br />12:17:15 Set outline levels<br />12:17:15 Freeze panes<br />12:17:15 Rows to repeat at top<br />12:17:16 Write to Excel2007 format<br />12:17:17 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4886 seconds<br />12:17:17 Current memory usage: 17.75 MB<br />12:17:17 Peak memory usage: 20.5 MB<br />12:17:17 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />