01:36:17 Enable Cell Caching using MemoryGZip method
01:36:17 Create new PHPExcel object
01:36:17 Set properties
01:36:17 Add data
01:36:17 Hide 'Phone' and 'fax' columns
01:36:17 Set outline levels
01:36:17 Freeze panes
01:36:17 Rows to repeat at top
01:36:18 Write to Excel2007 format
01:36:20 File written to 06largescale-with-cellcaching.xlsx
Call time to write Workbook was 1.6940 seconds
01:36:20 Current memory usage: 23.75 MB
01:36:20 Peak memory usage: 26.75 MB
01:36:20 Done writing file
File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples