231725 Twitter Script - Widget

Need a script or widget that would automate the process of following a mass list of twitter accounts. I have the list of accounts in an excel file. I would also like to be able to select a specific twitter profile and auto follow everyone on their follow list. Ideally, this would be a website or web widget that would allow me to upload a csv file, although cost is my primary driving factor. I don't care what programming language is used.