.SFX File Extension
File Type 1Windows Self-Extracting Archive
What is an SFX file?
Compressed archive containing one or more files; may use one of several different types of compression, such as .7Z, .ZIP, or .RAR compression; runs itself when opened and decompresses and extracts the contents; allows users to open the archive without needing a file decompression program.
SFX files can be created by several different programs, including RARLAB WinRAR, Corel WinZip, 7-Zip, ESTSoft ALZip, and Smart SFX Pro. SFX files created with 7-Zip may be extracted with PeaZip.
NOTE: Self-extracting archives commonly use the .EXE extension and not the ".sfx" extension.
File Type 2SoundFX Audio File
.SFX File Association 2
An SFX file is an audio file saved in the SoundFX format. It is similar to a SoundTracker (.TFMX) file, but is designed for sound effects. SFX files may include patterns and audio effects, but are typically short in length.
The programs that created SFX files are no longer developed or maintained. However, they may be recognized by some audio tracker programs like OpenMPT.