43 Merge workbooks

03:22:21 Load MergeBook1 from Xlsx file
03:22:21 Read Xlsx format from /var/www/x-libs/spreadsheet/samples/templates/43mergeBook1.xlsx in 0.0028 seconds
03:22:21 Load MergeBook2 from Xlsx file
03:22:21 Read Xlsx format from /var/www/x-libs/spreadsheet/samples/templates/43mergeBook2.xlsx in 0.0019 seconds
03:22:21 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0023 seconds
03:22:21 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0015 seconds
03:22:21 Peak memory usage: 2MB