19:09:39 Load MergeBook1 from Excel2007 file
Call time to read Mergebook1 was 0.0560 seconds
19:09:39 Current memory usage: 2 MB
19:09:39 Load MergeBook2 from Excel2007 file
Call time to read Mergebook2 was 0.0047 seconds
19:09:39 Current memory usage: 2 MB
19:09:39 Write to Excel2007 format
19:09:39 File written to 43mergeWorkbooks.xlsx
Call time to write Workbook was 0.0219 seconds
19:09:39 Current memory usage: 2 MB
19:09:39 Peak memory usage: 2 MB
19:09:39 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples