Append range to a specific column

[Florian_Prual]

I’m still confused. Now how do I go on and create a variable that holds the row number of the column?
I’ve looked up some solutions in the forum, but something is wrong and I have absolutely no idea what is…
The output of Read Range is data table: LastRow
Assign To: LastRow.Rows.Count.ToString = CountExcel (which is a data table)
But it tells me there is a invalid L-value expression.