As a function I suggest
Function RowNum(Target As Range) As Long
RowNum = Target.Row
End Function
use by entering in a cell =RowNum(E9). If you want the line relative to the table start and your table starts in -say- row 21, just subtract this from the result (you can use the same function to find the row of table start or course) ... e.g. =rownum(A2)-rownum($A$1) ... mind the absolute notation of table header!
If you don't like this as a function, you could use the SelectionChange event to display the row number of the selected cell in the message line (optionally depending on a "debug flag" somewhere in your sheet).
Tne non-VBA approach would be to use the CELL formula ... e.g. =CELL("row",A1)
