03:19:18 Enable Cell Caching using MemoryGZip method
03:19:18 Create new PHPExcel object
03:19:18 Set properties
03:19:18 Add data
03:19:18 Hide 'Phone' and 'fax' columns
03:19:18 Set outline levels
03:19:18 Freeze panes
03:19:18 Rows to repeat at top
03:19:18 Write to Excel2007 format
03:19:20 File written to 06largescale-with-cellcaching.xlsx
Call time to write Workbook was 1.7103 seconds
03:19:20 Current memory usage: 23.5 MB
03:19:20 Peak memory usage: 26.75 MB
03:19:20 Done writing file
File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples