Hello Antonio,
Can you please check the below help center documents
1) Financial Planning
2) Planning Quick Guide
In the document Planning quick guide
Refer to the sections
- Create plan
- Enter plan data
This will give you the complete details on how to select the General ledger and cost center.
With this details you can generate the excel.
I hope this will help you. If this answers your concerns, Please mark this thread as answered.
Let me know if your need further details.
Regards,
Harshal