Paste CSV data into Numbers properly formatted into rows and columns.

Paste CSV.scpt

set delim to ","

set the clipboard to my remplace(the clipboard as text, delim, tab)

on remplace(_t, _delim, _tab)
  local l
	set AppleScript's text item delimiters to _delim
	set l to text items of _t
	set AppleScript's text item delimiters to _tab
	set _t to l as text
	set AppleScript's text item delimiters to ""
	return _t
end remplace

tell application "Numbers"
	activate
	tell application "System Events"
		keystroke "v" using {command down}
	end tell
end tell