43 Merge workbooks

02:56:02 Load MergeBook1 from Excel2007 file
02:56:02 Read Excel2007 format from /home/factovizjh/legitrack_test/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook1.xlsx in 0.0513 seconds
02:56:02 Load MergeBook2 from Excel2007 file
02:56:02 Read Excel2007 format from /home/factovizjh/legitrack_test/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook2.xlsx in 0.0029 seconds
02:56:02 Write Excel2007 format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0036 seconds
02:56:02 Write Excel5 format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0091 seconds
02:56:02 Peak memory usage: 6.5MB