43 Merge workbooks

07:03:32 Load MergeBook1 from Excel2007 file
07:03:32 Read Excel2007 format from /home/factovizjh/legitrack_test/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook1.xlsx in 0.0554 seconds
07:03:32 Load MergeBook2 from Excel2007 file
07:03:32 Read Excel2007 format from /home/factovizjh/legitrack_test/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook2.xlsx in 0.0029 seconds
07:03:32 Write Excel2007 format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0039 seconds
07:03:32 Write Excel5 format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0127 seconds
07:03:32 Peak memory usage: 3MB