06:50:54 Load from OOCalc file Call time to read Workbook was 0.0452 seconds 06:50:54 Current memory usage: 1.5 MB 06:50:54 Write to Excel2007 format 06:50:54 File written to /var/www/yii2/vendor/phpoffice/phpexcel/Examples/OOCalcReader.xlsx 06:50:54 Peak memory usage: 1.75 MB 06:50:54 Done writing file