For me, I would create 3 additional temporary fields in your database and import the information into those fields. Then separate the information from those fields to your existing ones by using scripts to grab the values based on how they are formatted and punctuated.
This method should still be easier than typing 350 names and addresses.
Open the document in Word or some word processor with similar Find and Replace capabilities.
If there is a common character that marks the end of Name elements, do a Find and Replace ALL (replace with TAB character) for that character.