hallo,..
needs explanation what is the next step after found private key?
cant open wallet address using above private key found,.. is there anything else to be done after found private key,..
thanks
If the wallet (like the puzzle 64) is empty you cannot sign new transactions. Zero bitcoin means zero transactions available.

If you are lucky and you find a privkey with bitcoins inside you can use a wallet like Exodus (there are tutorials online how to importing a paper wallet).