Hello. I want to know about any bitcoin offline wallet which includes no third party. And can that wallet be hacked if I don't input any kind of malicious file or connect the device to Internet?
Easy way is download electrum wallet, then cut off your internet, generated address, write down you electrum seed in paper and keep it safe place.
the question is already answered and now you are just giving bad advice.
by cutting off your internet you are not really increasing your security, being offline means using the wallet software on an "airgapped" computer which is a system that has never been connected to the internet during its existence and will never be connected to the internet.
additionally an important step was skipped here which was verifying the signature of the software that were downloaded in this case Electrum which could be considered more important than going offline.