Word doesn't actually use row & column headings in tables, nor do tables work
the same as a spreadsheet (if that's what you're looking to do).
I'm certain you will get other responses, but FWIW, my preference is to use
Insert>Object>Microsoft Excel Worksheet if there are calculations, etc.
involved... especially if the data nedds to be periodically updated. If the
work has already been done in an existing Excel file, you can Create the
object as either Linked or Embedded.
HTH |:>)