08:19:59 Load MergeBook1 from Excel2007 file<br />Call time to read Mergebook1 was 0.0431 seconds<br />08:19:59 Current memory usage: 3 MB<br />08:19:59 Load MergeBook2 from Excel2007 file<br />Call time to read Mergebook2 was 0.0042 seconds<br />08:19:59 Current memory usage: 3 MB<br />08:19:59 Write to Excel2007 format<br />08:19:59 File written to 43mergeWorkbooks.xlsx<br />Call time to write Workbook was 0.0217 seconds<br />08:19:59 Current memory usage: 4.5 MB<br />08:19:59 Peak memory usage: 4.5 MB<br />08:19:59 Done writing file<br />File has been created in D:\phpStudy\WWW\newfile\newExcel\Examples<br />