Hotmail.opk __full__ Direct

It is important to remember that Hotmail was officially rebranded to Outlook.com in 2013. Most modern configuration files will use "outlook" in their naming convention rather than "hotmail." If you are troubleshooting an old email setup, you may encounter legacy files, but for current security, always ensure you are using the official Outlook login. How to sign in to Hotmail - Microsoft Support

No. An OPK file is not a document. If it contains email data, you would need the original proprietary software used to create it—which likely no longer exists. hotmail.opk