13:26:09 Load MergeBook1 from Excel2007 file
Call time to read Mergebook1 was 0.0360 seconds
13:26:09 Current memory usage: 4 MB
13:26:09 Load MergeBook2 from Excel2007 file
Call time to read Mergebook2 was 0.0027 seconds
13:26:09 Current memory usage: 4 MB
13:26:09 Write to Excel2007 format
13:26:09 File written to 43mergeWorkbooks.xlsx
Call time to write Workbook was 0.0139 seconds
13:26:09 Current memory usage: 6 MB
13:26:09 Peak memory usage: 6 MB
13:26:09 Done writing file
File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples