43 Merge workbooks

12:48:09 Load MergeBook1 from Xlsx file
12:48:09 Read Xlsx format from /home/bitrix/ext_www/retender.ru/export/samples/Basic/../templates/43mergeBook1.xlsx in 0.0047 seconds
12:48:09 Load MergeBook2 from Xlsx file
12:48:09 Read Xlsx format from /home/bitrix/ext_www/retender.ru/export/samples/Basic/../templates/43mergeBook2.xlsx in 0.0029 seconds
12:48:09 Write Xlsx format to /tmp/phpspreadsheet/43_Merge_workbooks.xlsx in 0.0043 seconds
12:48:09 Write Xls format to /tmp/phpspreadsheet/43_Merge_workbooks.xls in 0.0027 seconds
12:48:09 Peak memory usage: 2MB