21:20:34 Enable Cell Caching using MemoryGZip method<br />21:20:34 Create new PHPExcel object<br />21:20:34 Set properties<br />21:20:34 Add data<br />21:20:34 Hide 'Phone' and 'fax' columns<br />21:20:34 Set outline levels<br />21:20:34 Freeze panes<br />21:20:34 Rows to repeat at top<br />21:20:34 Write to Excel2007 format<br />21:20:36 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4086 seconds<br />21:20:36 Current memory usage: 17.75 MB<br />21:20:36 Peak memory usage: 20.5 MB<br />21:20:36 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />