Free online MXL to MUSICXML converter

A notation program may require an uncompressed .musicxml file for editing or exchange when a score arrives as a compressed .mxl package. Converting it usually extracts the stored MusicXML document rather than changing the musical notation.

What the MXL format is

MXL is the compressed package form of MusicXML. It is normally a ZIP container with an .mxl extension; the package commonly contains a MusicXML document with a .musicxml or .xml extension and META-INF/container.xml, which identifies the document's path inside the package.

Music notation applications such as MuseScore, Finale, Sibelius, and Dorico can create or open MXL files. They are used to exchange scores between notation programs, distribute digital sheet music, and reduce the size of MusicXML files.

What the MUSICXML format is

MusicXML is an XML-based interchange format for written music. It stores notes, rhythms, measures, instruments, articulations, lyrics, dynamics, and some layout information so that compatible notation and scoring programs can import the score.

An uncompressed .musicxml or .xml file can be inspected with a text editor, processed by XML tools, and used by software that does not support MXL. It is usually larger than the equivalent MXL package because MXL uses ZIP compression.

Convert with notation software

1. Open the .mxl file in MuseScore or another notation program that supports compressed MusicXML.
2. Check the imported score for missing instruments, changed tuplets, incorrect lyrics, altered spacing, and missing playback markings.
3. Choose File → Save As or File → Export, select uncompressed MusicXML or .musicxml, and save it under a new filename. If the program offers both MusicXML and compressed MusicXML, do not select MXL.
4. Open the exported file in the destination program and verify the notation before further editing or publication.

MuseScore is a practical desktop option because it can open MXL and export uncompressed MusicXML without a separate archive utility. Menu names and available formats vary by version; Finale, Sibelius, and Dorico provide comparable import and export functions when their installed version supports the file.

Extract the MusicXML file directly

Direct extraction avoids importing and re-saving the score. Use any archive utility that can open ZIP containers, or use the command line:

unzip -l score.mxl

Extract the package to a temporary directory:

mkdir score_mxl && unzip score.mxl -d score_mxl

Open score_mxl/META-INF/container.xml and find the rootfile path. Copy the referenced MusicXML file to the destination, retaining any related extracted files if the score refers to them:

cp score_mxl/path/to/rootfile.xml score.musicxml

The exact path may differ, and paths containing spaces require appropriate quoting or a graphical file manager. Do not use META-INF/container.xml as the output; it is only the package manifest. If the extracted document has an .xml extension, confirm that its root element is <score-partwise> or <score-timewise> before renaming or copying it as .musicxml.

Use the built-in online converter

On 101convert.com, upload the .mxl file, choose MUSICXML as the output format, run the conversion, and download the resulting file without installing software. Open the output in a notation program to check the score; avoid uploading confidential or unreleased material unless the service's data-handling terms are acceptable.

Quality and compatibility limits

Direct extraction normally makes no notation changes because it retrieves the XML already stored in the package. Opening and exporting through notation software can change page layout, fonts, spacing, playback settings, or unsupported notation features.

MusicXML is an interchange format, not a guarantee of identical rendering between applications. Proprietary objects, custom fonts, hidden elements, application-specific playback data, and advanced layout settings may be lost or interpreted differently. Reopen the converted file in the target program and inspect measures, voices, lyrics, dynamics, articulations, page breaks, and instrument assignments.