01:24:52 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0632 seconds<br />01:24:52 Current memory usage: 4 MB<br />01:24:52 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0157 seconds<br />01:24:52 Current memory usage: 4 MB<br />01:24:52 Write to Excel2007 format<br />01:24:52 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0309 seconds<br />01:24:52 Current memory usage: 6 MB<br />01:24:52 Peak memory usage: 6 MB<br />01:24:52 Done writing file<br />File has been created in D:\dev\sklad\vendor\phpoffice\phpexcel\Examples<br />