Ways to edit markups in Excel, or potentially link with Excel?

My team regularly receives markups from clients that come in two files, one a PDF with a callout such as 'C-001' and then an Excel sheet that will list 'C-001' with test in the adjoining column.

Now this is just a frustration on our end and something the clients will not budge on. I am curious if there is a way to bring that info into Bluebeam and have it populate something like a custom column?

Or could there be a way to export the markups, edit them in excel with the additional information matched through 'VLOOKUP', and import back to Bluebeam?

Any suggestions would be helpful!