What is an FEV file?
The .FEV file extension primarily represents an FMOD Audio Events File. Developed by Firelight Technologies, these files are used by video game developers to manage and trigger sound effects, music, and dialog. The .FEV file holds the metadata, rules, and parameters for the audio playback, while the actual sound data is usually stored in an accompanying .FSB file.
Because file extensions are sometimes shared between different programs, your .FEV file might also be a FLAMES Environment Variable file used by Ternion Corporation software.
How to open FEV files?
You can open standard FMOD audio event projects using FMOD Studio or legacy tools like FMOD Designer. Game development engines such as Unity and Unreal Engine can also read these files if you install the official FMOD integration plugins.
Analyze FEV files online
If you are unsure where your file came from, viewer.online/fev analyzes .FEV files to identify their exact format and creator software. The tool shows which programs can open the file, and usually previews it directly in your browser. This helps you quickly determine if you have an audio project or a software variable file.
Summary
Because standard .FEV audio files use the known RIFF format, viewer.online/fev can safely open and display them online, eliminating compatibility problems.