43 Merge workbooks

00:35:01 Load MergeBook1 from Excel2007 file
00:35:01 Read Excel2007 format from /home/factovizjh/legitrack_test/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook1.xlsx in 0.0341 seconds
00:35:01 Load MergeBook2 from Excel2007 file
00:35:01 Read Excel2007 format from /home/factovizjh/legitrack_test/vendor/phpoffice/phpspreadsheet/samples/templates/43mergeBook2.xlsx in 0.0025 seconds
00:35:01 Write Excel2007 format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0033 seconds
00:35:01 Write Excel5 format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0070 seconds
00:35:01 Peak memory usage: 6.5MB