Recover old LTC with .dat file, which wallet to Install for minimum DLs

Hi, I have my old wallet.dat backup file and would like to get them back. I would rather not have to download LTqt wallet and the full blockchain ledger as HD space is limited, can anyone please advise on A; the best wallet to install with minimum downloading required?
B; comment on the security of not DLing the full ledger?

Regards

Craig