As far as I remember, Combo uses WinCC Flexible, not WinCC.
(a small rant: I really dislike it when people cut off parts of terms and names. It is a source of confusion and mistakes.)
Also, from looking on the screenshot, I would say that you are after some kind of datalogging. Or maybe this is some kind of recipy or batch jobs. Please explain exactly what you want to do. We cannot know from guessing from a screenshot.
In case you really need to exchange data directly with excel, then there are 2 options with WinCC Flexible:
1. Add the option WinCC Flexible OPC Server. Then all the configured tags becomes available for OPC Clients.
2. Simply use the Simatic Net OPC server alongside WinCC Flexible. The HMI RT must then be part of a PC Station together with the OPC Server.
If you use Ethernet, then this is particularly clever, as each RT license is bundled with a Softnet Ethernet Lean license.
How to get the data from OPC to Excel:
Find Siemens support entry ID 24299099.