DDE
Have you tried using DDE( dynamic data exchange). I know you could use it between RS View and Excel. Not sure about Rs Logix and Excel.
I am sure there will be a lot of people who will recommend you OPC/OLE. I would advise you to look in that direction too though.
I am told the professional version of RS Logix has that feature available. If you are just looking for something to monitor, can't you use FFL or FFU(file load or file unload).