Band-in-a-Box style file
File type: Audio and sound file
Files with the ls3 file extension are used by Band-in-a-Box, PG Music's music software. They contain user-created music style data.
An .ls3 file stores style information in a simple text-based format rather than an audio recording.
File type category:
Audio and sound file
Date updated: November 5, 2026
The ls3 file extension identifies a Band-in-a-Box style file. Band-in-a-Box is a MIDI-based music editor and accompaniment program developed by PG Music, Inc.
An LS3 file contains music style data created by the user. The style information determines musical characteristics used by Band-in-a-Box when it generates an accompaniment or arrangement.
LS3 files are saved as simple text files. Band-in-a-Box is available for multiple platforms, including Windows and macOS.
Open an .ls3 file with Band-in-a-Box. Start the program and use its style or file-opening commands to load the file.
There is no generally applicable converter for the .ls3 format. The file contains Band-in-a-Box style data rather than standalone audio, so it is normally used directly in Band-in-a-Box.
After loading the style, Band-in-a-Box can be used to create and export the resulting music in formats supported by that program.
Software applications that can open ls3 files:
Multiplatform
Software applications that can edit ls3 files:
Multiplatform
Software capable of saving ls3 files:
Multiplatform
Software apps that create ls3 files:
Multiplatform
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