LanguageSFIL
Macintosh System Sound file
File type: Audio and sound file
Files with sfil extension are associated with system sounds used in some versions of Mac OS.
What is sfil file?
File type category:
Audio and sound file
Date updated: November 8, 2017
The sfil file extension is related to system sounds used in Mac OS 7, 8 and 9. These were the sounds that the various system alerts and events caused. There was a huge market amongst enthusiasts at one point for sound clips from Star Trek and various cartoon shows in the SFILl format to allow you to, for example, have Fred Flintstone go "Yabba-Dabba-Do!" when your file copy completed. Mac OS came bundled with an application to customize all system sounds.
How to open sfil file?
These files are played automatically when some operation triggered them.
How to convert sfil file?
To convert to a .mov Quicktime file you open the .sfil file in the OS 9 QuickTime application (Version 6) in either Classic Mode or (providing you still have a PowerPC Mac that will boot into OS 9) in actual OS 9. QuickTime will present you with a "Convert" button that will turn the file into QuickTime Movie file that will play under OS X (I've tested up to 4.11 anyway). It will, annoyingly, not have an .mov extension but you can add that manually.
Associated software actions with the sfil file
Software apps that convert sfil files:
File Juicer (Apple macOS / Mac OS X)