43 Merge workbooks

23:03:15 Load MergeBook1 from Xlsx file
23:03:15 Read Xlsx format from /var/www/vendor/phpoffice/phpspreadsheet/samples/Basic/../templates/43mergeBook1.xlsx in 0.0228 seconds
23:03:15 Load MergeBook2 from Xlsx file
23:03:15 Read Xlsx format from /var/www/vendor/phpoffice/phpspreadsheet/samples/Basic/../templates/43mergeBook2.xlsx in 0.0028 seconds
23:03:15 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0045 seconds
23:03:15 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0102 seconds
23:03:15 Peak memory usage: 10.5MB