Trouble with ExcelProp.java demo

First of all, let me preface this with the following: I am new to COM and
find it particularly confusing.

At any rate, on to my problem; I am trying to run the ExcelProp.java demo
and get an error when the code reaches the line

...
   range.putN("Item", new Object[] { new Integer(1)}, 2, range2);
...

I had to manually create the  'args[0]+"\\demos\\data\\propput.xls"' file,
as this file did not exist in the distribution, which I suspect may
contribute to my problem. Can anyone tell me what should be in this file
or where I can download it.

Any help would be appreciated..

And, many thanks to Jawin developers. Jawin looks like it will make
working with Java in a Windows environment much easier!!!