Litcoin Core import private keys help me please!

[LTCWALLET]

Hello everyone!! Help me please
On android i have litcoin core v3.33 2015
there is a export function for private keys is to make a backup with a password

How i can recovery this private keys ?
where these keys can be imported and how ?
is it possible to decrypt it ? to make 'importprivkey' command in the console of modern litcoin core client ?
Thank You So Much for help.