Would you provide more information about the problem?
When you switch to "Outbox", what is the status of the conversion? Does it show an error?
What is the PDF file size? How many pages does the PDF document have?
Have you tried converting other PDF documents to Excel?
Alternatively, you can convert PDF to Excel via the web interface on a Windows or Mac desktop/laptop computer.
If you can share your original PDF document with us (Adobe), we can investigate the problem. Please let us know if you are willing to share the PDF document. Thank you.