VBscript question using Excel 2002

I have a script which uploads data from an AS400 system directly into an Excel5 file…my question is that script is written to write to an Excel5 type file….how would I define it to write to an Excel 2002 file….here are the lines of code:

Const typeExcel5 = 15

xfer.Download sysName, fileName, pcFile, typeExcel5

Thank You