In Acrobat 9 you can select part of a PDF, right-click and in the resulting menu select "open as a table". I have a user machine with Acrobat DC installed and this option is not available. Am I missing something or is it somewhere else now?
Could you please provide more information under which tool you get this option in Acrobat 9.
If you can share the screenshot of the option that will be helpful.
Please also share the Acrobat DC version installed on your system.
Acrobat has evolved a lot since version 9. Now, after selecting cells, a right click's context menu provides (among other choices) the choice to Export Selection As ....
In the dialog for saving the file that results from the export the content use the "Save as type" to select the desired format. "Open as a table" put you on the road to an Excel file. For that simply select "Excel Workbook". Look over the drop-down to see the full inventory of file types available.