21:31:35 Load MergeBook1 from Excel2007 file
Call time to read Mergebook1 was 0.0492 seconds
21:31:35 Current memory usage: 4 MB
21:31:35 Load MergeBook2 from Excel2007 file
Call time to read Mergebook2 was 0.0038 seconds
21:31:35 Current memory usage: 4 MB
21:31:35 Write to Excel2007 format
21:31:35 File written to 43mergeWorkbooks.xlsx
Call time to write Workbook was 0.0241 seconds
21:31:35 Current memory usage: 6 MB
21:31:35 Peak memory usage: 6 MB
21:31:35 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples