23:51:36 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0473 seconds<br />23:51:36 Current memory usage: 2 MB<br />23:51:36 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0060 seconds<br />23:51:36 Current memory usage: 2 MB<br />23:51:36 Write to Excel2007 format<br />23:51:36 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0316 seconds<br />23:51:36 Current memory usage: 2 MB<br />23:51:36 Peak memory usage: 2 MB<br />23:51:36 Done writing file<br />File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples<br />