Convert LSO files online for free
The converter easily converts your LSO 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 Audio formats to LSO with high quality output.
The .LSO extension most frequently represents a Logic Audio Song file, a legacy project format created by Emagic Logic (the precursor to modern Apple Logic Pro). These files contain MIDI sequences, mixer automation, and arrangement data from the late 90s and early 2000s.
The Problem: The primary challenge is obsolescence. Modern versions of Logic Pro (X and 11) have dropped native support for .LSO files, meaning you cannot simply double-click to open them. Users often encounter frustration when trying to resurrect old musical projects, as the proprietary lock-in requires an intermediate version of the software (like Logic 9 or a virtualization of Logic 4/5) just to access the data.
Alternative Formats: An .LSO file might also be a serialized data object from SurveyCTO or LimeSurvey, storing offline survey responses, or a lighting sequence file for Light-O-Rama. These formats are binary and unreadable in standard text editors like Notepad.
The Solution: For musicians, the goal is to convert the project to a modern LOGICX package or export the musical data to MIDI and WAV stems for use in other DAWs like Ableton Live or Pro Tools. For data analysts, the objective is converting the binary survey data into CSV or XLSX for analysis in Microsoft Excel.
Use Convert.Guru to open and convert your LSO file.
Users also converted LOGIC, MID, WFP, HPRJ and PRJPCB files.
If you want to convert LSO file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use Logic Pro or similar software from the "DAW Project 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 LSO, try Logic Pro or another comparable tool in the "DAW Project 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 LSO converter.