43 Merge workbooks

17:58:00 Load MergeBook1 from Xlsx file
17:58:00 Read Xlsx format from /var/www/html/testcheckoutcardnet/vendor/phpoffice/phpspreadsheet/samples/Basic/../templates/43mergeBook1.xlsx in 0.0540 seconds
17:58:00 Load MergeBook2 from Xlsx file
17:58:00 Read Xlsx format from /var/www/html/testcheckoutcardnet/vendor/phpoffice/phpspreadsheet/samples/Basic/../templates/43mergeBook2.xlsx in 0.0060 seconds
17:58:00 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0086 seconds
17:58:00 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0123 seconds
17:58:00 Peak memory usage: 8MB