43 Merge workbooks

20:02:35 Load MergeBook1 from Xlsx file
20:02:35 Read Xlsx format from /var/www/x-libs/spreadsheet/samples/templates/43mergeBook1.xlsx in 0.0097 seconds
20:02:35 Load MergeBook2 from Xlsx file
20:02:35 Read Xlsx format from /var/www/x-libs/spreadsheet/samples/templates/43mergeBook2.xlsx in 0.0039 seconds
20:02:35 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0108 seconds
20:02:35 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0039 seconds
20:02:35 Peak memory usage: 2MB