I'm glad to hear that your issue has been resolved. And thanks for sharing the solution, which might be beneficial to other community members reading this thread. Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to accept the answer.
Question: Convert DocumentTable to normal table for Azure Intelligent Documents
Solution: I found the way of manipulating the json output of the table row by row to be converted to excel.
If you encounter any issues in the future, don't hesitate to reach out to the community forum for assistance. Thank you.
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