Jakey's Girl Tree says: (<--- that's my fiancee)
Copy and paste your list into a text file (.txt so there is no formatting)
Then in Excel:
Select your file.
That should import everything into separate cells.
I just realized you probably meant you had 3 lists which you were trying to consolidate.
At first I thought you had a list that went something like (first name, last name, e-mail).
So, using the method outlined above you could import all the separate lists and then use Excels sort feature.
I don't know how to remove duplicates...
You move north.
It is pitch black. You are likely to be eaten by a grue.