07:01:13 Enable Cell Caching using MemoryGZip method
07:01:13 Create new PHPExcel object
07:01:13 Set properties
07:01:13 Add data
07:01:13 Hide 'Phone' and 'fax' columns
07:01:13 Set outline levels
07:01:13 Freeze panes
07:01:13 Rows to repeat at top
07:01:13 Write to Excel2007 format
07:01:15 File written to 06largescale-with-cellcaching.xlsx
Call time to write Workbook was 1.6742 seconds
07:01:15 Current memory usage: 23.25 MB
07:01:15 Peak memory usage: 26.5 MB
07:01:15 Done writing file
File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples