43 Merge workbooks

03:17:24 Load MergeBook1 from Excel2007 file
03:17:24 Read Excel2007 format from /home/factovizjh/legitrack/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook1.xlsx in 0.0060 seconds
03:17:24 Load MergeBook2 from Excel2007 file
03:17:24 Read Excel2007 format from /home/factovizjh/legitrack/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook2.xlsx in 0.0019 seconds
03:17:24 Write Excel2007 format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0025 seconds
03:17:24 Write Excel5 format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0041 seconds
03:17:24 Peak memory usage: 1.5MB