When you click on a file type that your operating system does not recognize, a dialog appears asking if you want to search the Internet for a program or you could choose from a list of programs to open the file. If you came to this site you are likely to look for a program that works with a particular file extension. This website will probably be in a position to help you identify that unknown file, by making use of our online database.
UnknownFile.com is a free and open public service, offering more than 19000 descriptive file extensions. Our mission is to offer Internet users the opportunity to research and learn more about specific file extensions. Our archive is the best and most comprehensive resource available on the Internet, maintained by private individuals, program developers and organizations continuously reporting, listing and updating new file extensions.