Can you Burst a Book consisting of another Book using Excel?

Summary:

Our client is trying to burst a Book which has another Book embedded in it. It works successfully when we have the bursting switched to pdf, but when we switch to Excel bursting, we get the success email but no reports are distributed.

Content (please ensure you mask any confidential information):

When we try Excel bursting with the identical setup used for pdf bursting, we get the following messages, and final message indicating there is no data when there clearly is data when we burst in pdf format:

Details

The Bursting operation has completed successfully.

The total number of report executions: 5.