Files with the .FILE extension may contain data of different types, as it is a general extension, assigned in Windows to files of unknown type – ones that do not have extensions. No application can be associated with this extension, which means that a program will not start automatically when you double-click a FILE file.

FILE files can be formatted as text files, wherefore you may be able to view their contents in a normal text editor. If you have a suspicion about what type of data a FILE FILE stores, you can try opening it using a program that potentially could support and open it.