excel shared data

[BINZA@]

This may not be the correct news group but not sure where to go so thanks
for any guidence.

I have a domain on which we have a shared folder which contains an excel
workbook.
Multiple users update this workbook via this network share.
I have a pc that has a large wall mounted screen attached which is plugged
into network using tcp/ip but does not have domain account or user logon,
goes straight through to a desktop and displays a slide show on wall screen.
Some of these slides now need to access data in cells on shared excel
workbook to show graphs in slideshow.
My question is can anyone suggest a way of getting data from excel cells to
this standalone pc.

thanks for any sugestions.