43 Merge workbooks

15:28:46 Load MergeBook1 from Xlsx file
15:28:46 Read Xlsx format from /var/www/erp/spreadsheet/samples/templates/43mergeBook1.xlsx in 0.0060 seconds
15:28:46 Load MergeBook2 from Xlsx file
15:28:46 Read Xlsx format from /var/www/erp/spreadsheet/samples/templates/43mergeBook2.xlsx in 0.0036 seconds
15:28:46 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0057 seconds
15:28:46 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0045 seconds
15:28:46 Peak memory usage: 2MB