I have awesome news for you!!! @whiteblood has already made all the necesary to automate the process!!!
Here are the post to follow:

• https://steemit.com/howto/@whiteblood/how-to-extract-bulk-followers-or-upvoters-username-in-a-notepad-or-excel-sheet
• https://steemit.com/steemit/@whiteblood/imacro-script-for-automotion-of-transfer-steem-dollar-to-bulk-user

Follow the instructions very carefully on the second one o.o I think she might help you If you need better explanation; and follow her because she is an awesome steemian n.n