Fred,
If you are using CX-Programmer, there is a DDE manager under the CX-server -
Start -> Programs -> Omron -> CX-Server -> DDE manager (The path may be different depend on your installation directory).
Explore the DDE manager, you can export data to excel using that option. I have not used it for any specific applications. But tried it before and works fine.
Let me know if you need the sample I created on CPM1A.