All I have is the private keys and the amount of btc for each pk so this is how I know roughly how much $$$ is involved.
You may have a list of "
Transaction ID" and their respective amounts instead of an ECDSA Private key.
Because it's rare to have a backup of a private key that's not in WIF these days, unless it's from the very old wallets.
In case those are TXIDs, the list is useless as a backup; it's more of a transaction history export.
But do not test if it's TXID yet until you've confirmed that it's empty if imported as private key.