File extension KEY

File extension KEY is one of the file extensions that define type of the file and its contents.

This is one of the few interesting file formats that you will come across. As the name suggests clearly, the files with the .key extension are the License Key files which are used to authenticate the installation processes of different softwares, generally the antivirus and anti-malware programs. Primarily, this type of file extension is related to the AntiVir Personal Edition program. This program is created and controlled by the AntiVir Personal Products GmbH. The file name used by this program is HBDEV.KEY. Sometimes, this extension is also related to the Sentry 2020 Encryption Files.

Who uses this type of file format?

The files with the File extension KEY are also used by the Mac Operating System by Apple. They are usually created by the Apple Keynote Presentation Software. These presentation files include the slides which contain text, XML and the presentation transitions. The .key files are used by the programs for the security reasons while registering for the legal and authenticated copies of the softwares. Though the files are generally in the form of plain text and contain a 16-digit or a similar code, sometimes they may also consist of a particular form of encrypted key which is used for registering and authenticating the software.

These File extension KEY format files are by default installed and saved in the application folder of the program or in the preference system folder. However, this setting can also be altered before the installation starts. There can be no single program which can only open all the .key files. It is because these files do not pertain to single software. They are used by different types of programs over time. Thus, to open a particular .key file, the pre-requisite information to know is that whether that particular .key file is associated with the program in question or not. Therefore, to register the software, the user must know exactly as to which software the key corresponds to .

The various applications which are associated to the files with the File extension KEY are ArcView (the Geocoding Matching Keys Software) from ESRI, Avira Antivirus Program (Product Key) by Avira GmbH, the Bioware Aurora Engine by Bioware Corporation, Business Key (a type of accounting file) by the Universal Systems, DataCAD Icon Toolbar File by DATACAD LLC and Diablo II Key File by Blizzard Entertainment.

Confused about File extension KEY? Want to learn more about what file extensions are, how Windows and computers work? You can start by reading our knowledge base articles about these topics in our knowledge base which is regularly updated with new content.

Files on computers are grouped together into folders. Folders can contain files or other folders within them. Folders help keeps your computer files organized. Learn more about files and folders.

Files can contain different kinds of information – text documents, spreadsheets with numbers, pictures, videos, music, maps, etc… In order to tell which file contains which data, file extensions are used. File extension is a part of a file name that comes after the last dot. Examples of file extensions are JPEG, DOC, MP3, MP4, etc. A rough analogy would be person’s last name. Just like it, file extension identifies which “family” of files, specific file belongs to. Learn more about file extensions.

From computer’s point of view all files contain just long strings of numbers. It is computer applications (aka software) is what translates these numbers into useful, text images, and sounds. In order to open the file correctly, computer must use correct application that is appropriate for a file type (Word processor for text documents, photo application for image files, etc). Each file extension is assigned main default application that opens it and a number or additional applications that user can choose from. Information about these assignments is stored in Windows Registry. Failure to open files often results from Windows registry being corrupted. Learn more about Windows Registry.

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