Change xls open

I've a big problem :

I've installed the last version of trial aspose.excel web on IIS5 (Framework 1.1).

If i try to open another file that is not the sample file xls iis show me always the sample file xls.

I think that the trial version work only with the sample file xls.

Can you help me ???? Pleaseeee

How do you open your file? Could you please elaborate your steps to open another file?

And you can check

for more information.