Thanks for reaching out. As described above, you are experiencing issues while exporting PDF to Excel, correct?
We need some more information for a better understanding:
What is the workflow/steps you are doing to export the PDF to Excel?
Are you using Adobe Acrobat Reader DC to export the file? If yes, what is the version of the application? To check the version of the application please go to Help > Click, about Adobe Acrobat Reader DC.
Is the PDF file present locally on your computer or present on a shared network drive?