43 Merge workbooks

04:35:40 Load MergeBook1 from Xlsx file
04:35:40 Read Xlsx format from /opt/bitnami/apache/htdocs/cdn/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook1.xlsx in 0.0047 seconds
04:35:40 Load MergeBook2 from Xlsx file
04:35:40 Read Xlsx format from /opt/bitnami/apache/htdocs/cdn/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook2.xlsx in 0.0024 seconds
04:35:40 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0046 seconds
04:35:40 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0036 seconds
04:35:40 Peak memory usage: 2MB