if it is encrypted fully then I cannot extract other general information like the address right?
I need the password then I guess?
That's the problem if you don't have the correct password of this wallet you can't able to check or open this wallet because every time you open this wallet with Electrum it will ask for a password before you can open it.
If you want to find the right password there is a way to find the correct password but I'm sure it's a long journey before you can guess the password. They mostly called it Bruteforce we have a link to this tool to brute-force the password you can check it from this link below.
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https://github.com/gurnec/btcrecover