09:11:06 Enable Cell Caching using MemoryGZip method
09:11:06 Create new PHPExcel object
09:11:06 Set properties
09:11:06 Add data
09:11:06 Hide 'Phone' and 'fax' columns
09:11:06 Set outline levels
09:11:06 Freeze panes
09:11:06 Rows to repeat at top
09:11:09 Write to Excel2007 format
09:11:10 File written to 06largescale-with-cellcaching.xlsx
Call time to write Workbook was 1.2762 seconds
09:11:10 Current memory usage: 22 MB
09:11:10 Peak memory usage: 26 MB
09:11:10 Done writing file
File has been created in /home/imevent/public_html/backup/vendor/phpoffice/phpexcel/Examples