43 Merge workbooks

13:34:46 Load MergeBook1 from Xlsx file
13:34:46 Read Xlsx format from /opt/bitnami/apache/htdocs/cdn/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook1.xlsx in 0.0041 seconds
13:34:46 Load MergeBook2 from Xlsx file
13:34:46 Read Xlsx format from /opt/bitnami/apache/htdocs/cdn/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook2.xlsx in 0.0025 seconds
13:34:46 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0044 seconds
13:34:46 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0035 seconds
13:34:46 Peak memory usage: 2MB