The best thing is properly to use vba to access the db and read a db selection with a SQL statement. If you step through the received recordset, you should be able to put that over a string into the clipboard. After that step you can paste it.
If the data to be imported or populated are in table form or in the text box, it will be fairly easy. You can either resort to the import mode or copy paste mode. Regardeless of the mode you resort to, I don't think there will be much difference in the end result.