08:57:21 Load MergeBook1 from Excel2007 file
Call time to read Mergebook1 was 0.0456 seconds
08:57:21 Current memory usage: 4 MB
08:57:21 Load MergeBook2 from Excel2007 file
Call time to read Mergebook2 was 0.0051 seconds
08:57:21 Current memory usage: 4 MB
08:57:21 Write to Excel2007 format
08:57:21 File written to 43mergeWorkbooks.xlsx
Call time to write Workbook was 0.0220 seconds
08:57:21 Current memory usage: 6 MB
08:57:21 Peak memory usage: 6 MB
08:57:21 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples