Convert SFL files online for free
The converter easily converts your SFL file to various formats - free and online. No Media Player or extra software needed.
The converter also works in reverse, so you can convert other Data formats to SFL with high quality output.
The .sfl extension most frequently represents a Sound Forge Sound Data file, originally developed by Sonic Foundry (later Sony, now Magix). These are RIFF-based metadata files generated automatically alongside audio files (like WAV) to store visual waveform peaks, markers, and regions.
Critical User Friction: A common misconception is that .sfl files contain audio. They do not. They are lightweight index files (often under 1MB) that act as a map for the audio editor. Users frequently attempt to convert .sfl to MP3 or WAV, only to find the conversion fails or results in an empty file. You cannot "play" an .sfl file; you must locate the parent audio file (e.g., recording.wav) which typically resides in the same folder.
Alternatively, on macOS, an .sfl file is a Shared File List (specifically com.apple.LSSharedFileList). These are system files found in the user Library that track "Recent Items" for the Finder and other applications. They are binary Property List (plist) files. Users often need to convert these to XML or Text to debug "Recent Items" issues or forensic analysis, as the binary format is not human-readable without tools like plutil.
Use Convert.Guru to open and convert your SFL file.
Users also converted PDF, MPP, SONG and RXPROJ files.
If you want to convert SFL file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use Sound Forge Pro or similar software from the "Audio Waveform Metadata Storage" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to SFL, try Sound Forge Pro or another comparable tool in the "Audio Waveform Metadata Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our SFL converter.