master private keys i have like 300 of them i need to import them all in bulk or sweep them somehow

thanks but i have a few 100 wallets so need to do it in bulk how would i derive the keys thanks

hello im having a issue i have a few pvt keys i think there master keys or extended pvt keys im trying to import them into bitcoin core or anyother wallet with not much luck i need to be able to import a list in 1 go not 1 by one can anyone with bitcoincore try give it a go for me and see if it can be imported or tell me what type of key i have heres a empty key for testing i will give anyone who can solve this 50usd in btc thanks

test key

xprv9xyQEZakyfuyCRGF1moJNatpGDAgMS4hgctAgWU4RNw664qCz6agreZParHx6G24td48SZKnmK8 ppSVMvmyBuTy9L4poDhwgm9aR9GukgQW