Sorry for the delay in response.
Could you confirm, how exactly you convert the pdf document to excel? Is it online via web browser https://cloud.acrobat.com/ or using desktop application Adobe Reader DC?
The pdf file you have exported to excel is it a scanned file or contain real text in it?
Does it happen with all the pdf you convert? For testing purpose would you please check with a different pdf?
You may read the related forum thread where similar issue has been discussed. I need to convert PDF to Excel, however, columns and tabs make many merged cells and many blank colu...