Put your entire list in notepad - put a tab at the bottom and copy just the tab.
Do a replace- http:// with
http://TAB
then do a replace- .com/ with .com/TAB
then do a replace- .net/ with .net/TAB
then do a replace- .info/ with .info/TAB
then copy your page and paste in Excel and your domains will in a seperate column than the rest of the url.