22:36:29 Load MergeBook1 from Excel2007 file
Call time to read Mergebook1 was 0.0585 seconds
22:36:29 Current memory usage: 4 MB
22:36:29 Load MergeBook2 from Excel2007 file
Call time to read Mergebook2 was 0.0037 seconds
22:36:29 Current memory usage: 4 MB
22:36:29 Write to Excel2007 format
22:36:29 File written to 43mergeWorkbooks.xlsx
Call time to write Workbook was 0.0220 seconds
22:36:29 Current memory usage: 6 MB
22:36:29 Peak memory usage: 6 MB
22:36:29 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples