22:11:26 Enable Cell Caching using MemoryGZip method<br />22:11:26 Create new PHPExcel object<br />22:11:26 Set properties<br />22:11:26 Add data<br />22:11:26 Hide 'Phone' and 'fax' columns<br />22:11:26 Set outline levels<br />22:11:26 Freeze panes<br />22:11:26 Rows to repeat at top<br />22:11:27 Write to Excel2007 format<br />22:11:28 File written to 06largescale-with-cellcaching.xlsx<br />Call time to write Workbook was 1.4841 seconds<br />22:11:28 Current memory usage: 17.75 MB<br />22:11:28 Peak memory usage: 20.5 MB<br />22:11:28 Done writing file<br />File has been created in /home/factovizjh/dataviz/vendor/phpoffice/phpexcel/Examples<br />