I accidentally sent my MEW private key instead of wallet address to this Google Docs Airdrop. Is it possible to replace that private key? Thanks a lot!
I think it's can't be replaced. Quickly transfer your all coins in another wallet because you already submitted in public place so i think this is not safe and don' use this wallet next time. Airdrop sheet always public access. You can contact him who is owner of this google docs from.
You're right, you can't change your private-key except by generating a new one and transferring the assets from the old wallet to the new one.
However I guess the OP already found a solution or got ripped as the thread was created back in November 03, 2017.