Cant print XLS to PDF using line command and having associated xlview.exe to excel files

When you try to print a XLS to PDF using line command:

PDFCREATOR.exe /PF"filename.xls"

If you only have installed the excel viewer (xlview.exe), or you have associated the xlview to your .XLS, you cant print to PDF by line command. PDFCreator doesnt nothing.

I need to print XLS to PDF using line command, without having MS Office or Open Office installed in the system. Only excel viewer.

Any idea?.

Many thanks.