Isn't this a SP 2010 only function ?
If so you are in the wrong forum.
If you are working with SPS 2010 (or SPF 2010) please let me know by reply to this thread and I will move the thread to the correct forum.
It also doesn't seem to have anything to do with Excel Services. Please justify this choice of forum if you are using MOSS 2007.
Moderator pre-SP 2010 forums
Microsoft is conducting an online survey to understand your opinion of the Technet Web site. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.
Would you like to participate?