Trying to add UIDS To List, no clue where to start


I posted this elsewhere and got a slow response, hoping someone here can help me

I have an excel sheet with a list of twitter IDS, I want to use TWURL ?? to add them to a list to organize them better. I created the list so I am the authorized user, however I do not know where to start as far injection, I am new to twitter DEV, Hopefully someone here can help