19:29:07 Load MergeBook1 from Excel2007 file
Call time to read Mergebook1 was 0.0448 seconds
19:29:07 Current memory usage: 4 MB
19:29:07 Load MergeBook2 from Excel2007 file
Call time to read Mergebook2 was 0.0039 seconds
19:29:07 Current memory usage: 4 MB
19:29:07 Write to Excel2007 format
19:29:07 File written to 43mergeWorkbooks.xlsx
Call time to write Workbook was 0.0236 seconds
19:29:07 Current memory usage: 6 MB
19:29:07 Peak memory usage: 6 MB
19:29:07 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples