43 Merge workbooks

10:10:44 Load MergeBook1 from Xlsx file
10:10:44 Read Xlsx format from /home/roanneba/www/spreadsheet/samples/templates/43mergeBook1.xlsx in 0.0169 seconds
10:10:44 Load MergeBook2 from Xlsx file
10:10:44 Read Xlsx format from /home/roanneba/www/spreadsheet/samples/templates/43mergeBook2.xlsx in 0.0011 seconds
10:10:44 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0023 seconds
10:10:44 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0069 seconds
10:10:44 Peak memory usage: 8MB