Embedded Excel Border Problem

Hi,

I have used Excel and Skydrive's feature of embedded an Excel document on to my website.

More info http://office.microsoft.com/en-gb/ex...102602477.aspx

However once my example it uploaded, a border is added to the top and left (see photo example).
The screen shot is just a test I was using, not my actual Excel file. I wanted to see if it was a problem with my Excel file and not Excel in general.

I know this can be changed as I have downloaded the Microsoft example and uploaded it to my site, with no border cropping up.

Any suggestions? I have spent many hours trying to figure this out….

Thank you.