07:09:28 Read Slk format from /opt/www/pxe/vendor/phpoffice/phpspreadsheet/samples/Basic/../templates/SylkTest.slk in 0.0318 seconds 07:09:28 Write Xlsx format to /tmp/phpspreadsheet/20_Read_Sylk.xlsx in 0.0126 seconds 07:09:28 Write Xls format to /tmp/phpspreadsheet/20_Read_Sylk.xls in 0.0167 seconds 07:09:28 Peak memory usage: 10MB