08:37:48 Load from OOCalc file Call time to read Workbook was 0.0512 seconds 08:37:48 Current memory usage: 1.5 MB 08:37:48 Write to Excel2007 format 08:37:48 File written to /var/www/yii2/vendor/phpoffice/phpexcel/Examples/OOCalcReader.xlsx 08:37:48 Peak memory usage: 1.75 MB 08:37:48 Done writing file