http://www.youtube.com/watch?v=A3UeLnMBhJQ
This video show how to use wxWidgets application with MS Excel.
The source code is available to download at:
"https://drive.google.com/file/d/0B1Jtvy4Ey-uwb0U5bGVFRDdGWWs/edit?usp=sharing"
Note: I used wxWidgets 3.0.0 and CodeBlocks 12.11