LSW Converter

Extract text from LSW files

Select File
Drop or upload your .LSW file

Online File Converter

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How to extract text from your LSW file

Click the "Select File" button above, and choose your LSW file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.

Convert LSW to another file type

To convert your LSW file to another format, you need Yamaha MusicSoft or other Audio software.

LSW to EXE
LSW to ISO
LSW to BIN
LSW to CUE
LSW to PAK
LSW to WAD
LSW to PK3
LSW to PK4
LSW to BSP
LSW to MAP
LSW to SAV
LSW to DAT

Convert a file to LSW

To convert other file formats to the "Proprietary MIDI Sequence" file type, you need software like Yamaha MusicSoft or a similar tool.

MOD to LSW
BIN to LSW
CFG to LSW
SCX to LSW
DAT to LSW
MPQ to LSW
LOG to LSW
CUE to LSW
INI to LSW
EXE to LSW
SCM to LSW
ISO to LSW

About LSW files

The .LSW extension typically represents a Yamaha Lesson Song file, a proprietary format used by Yamaha portable keyboards (such as the EZ series) to control the "Guide" feature that lights up keys during practice. Unlike standard MID files, .LSW files contain specific lighting data and vendor-specific sysex commands that most audio players (like VLC or Windows Media Player) cannot decode. Users frequently experience issues when trying to listen to these lesson songs on a PC or phone, as no standard converter exists to turn them directly into MP3 or WAV.

Alternatively, this file may be a Light Show Wizard template generated by Light-O-Rama software. These files store parameters for automatically generating lighting sequences synchronized to music. They are not video files and cannot be uploaded to YouTube without processing.

Best Conversion Targets:

For Yamaha Files: To listen on other devices, the most practical solution is to play the file on the keyboard and record the "Line Out" audio to a PC, saving it as MP3 or FLAC. Direct file conversion is generally not possible due to encryption or proprietary encoding.
For Light-O-Rama: Import the file into the Light-O-Rama Sequencer to generate a standard LMS sequence file.
For EVE Online: If the file is from EVE Online, it is likely a log file structured as an SQLite database or raw text. Convert it to CSV or TXT for analysis using a database viewer.

Convert.Guru analyzes your LSW file, detects the exact format, and lets you read the text inside.

Users also converted CMP files.

The LSW Converter Story

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 LSW converter.