[PDF-Basics] Convert Table to .txt (not copying)

[Stephen Howard]

I tried searching the archives and didn't find anything.  I'm new to this group and probably just didn't know the right question to ask.   I received an emailed pdf file that I am trying to convert to an Excel file.  When I attempted to highlight the area with the table tool, none of the numbers highlighted.  I tried the same procedure on other pdf files and it worked fine.  Does anyone know what the cause of this could be and is there a way to correct the problem?   Thanks,   Steve