43 Merge workbooks

06:59:40 Load MergeBook1 from Xlsx file
06:59:40 Read Xlsx format from /opt/www/pxe/vendor/phpoffice/phpspreadsheet/samples/Basic/../templates/43mergeBook1.xlsx in 0.0375 seconds
06:59:40 Load MergeBook2 from Xlsx file
06:59:40 Read Xlsx format from /opt/www/pxe/vendor/phpoffice/phpspreadsheet/samples/Basic/../templates/43mergeBook2.xlsx in 0.0037 seconds
06:59:40 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0063 seconds
06:59:40 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0145 seconds
06:59:40 Peak memory usage: 8MB