The file extension 'nayak' is not a widely recognized or standard file format. It most likely represents a proprietary or custom data format used by a specific software application or system. Without further context about the software or system that utilizes '.nayak' files, it's impossible to determine the exact type of data it contains. It could potentially store configuration settings, game data, project files, or any other type of application-specific information. Opening a '.nayak' file without knowing the associated software is unlikely to be successful, and attempting to do so with a generic text editor or other program could result in garbled or unreadable data. To work with a '.nayak' file, you would need to identify the software that created it and use that software to open, edit, or convert the file.