MGU File Extension
Band-in-a-Box MIDI
- File Type mgu
- Developer PG Music Inc.
- Popularity
- Application MuseScore
- Category Audio Files
What is a MGU file?
Files with the MGU extension are specifically tied to Band-in-a-Box MIDI, a Audio Files type, and there are 667 files in this category.
The Band-in-a-Box MIDI (MGU), created by PG Music, is one of file format they developed, and they also built programs to support them.
MGU files are compatible with various operating systems, including Windows, Mac OS and Linux. When working with MGU files, you can rely on 2 programs, including Band-in-a-Box and MuseScore.
Programs that support MGU files
How to open a MGU file?
If you can’t open a MGU file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
Band-in-a-Box and MuseScore are among the most widely used programs for handling MGU files. To install the most up-to-date edition of MuseScore, visit the official Werner Schweer website. You can download the build that works across all operating systems.
After installing, your OS should instantly open MGU files with MuseScore.
Setting MuseScore as default MGU viewer
Change the default app for a file type in Mac
- Initiate a right click or use Control + left click on the desired MGU file to open a menu where you can select various actions;
- Choose "Open in Application" and click "Other";
- Look towards the bottom of the window, where you will find the "Enable" menu. "Recommended programs" will be the default selection;
- Choose "All Programs" in this menu and search for MuseScore. Check the box next to "Always open in app" to set it as the default option.
Change default programs in Windows
- Take the first step by right-clicking on your MGU file. Next, select "Open With" and then choose "Choose another app" from the available options;
- Choose MuseScore from the available applications listed in the pop-up window to set it as the default application to open your MGU file;
- Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.
How to edit a MGU file?
To modify MGU files, it is necessary to install dedicated software that lets you open and edit audio files. Online MGU editors generally offer fewer tools compared to programs designed for Band-in-a-Box MIDI.
Best MGU editors 2026
Based on the specified criteria, here is a list of MGU editors that may fit your requirements.
| MGU Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Band-in-a-Box | PG Music | Windows, Mac OS, Linux | 4.4 out of 5 (41 review) |
Convert files to and from MGU
When a MGU file is not easy to work with, converting it to formats like MP3, MIDI, MID or other comparable types may help.
It is important to understand that converting a MGU file might limit certain functions, but this conversion is usually reversible.
Convert MGU to other file formats
Converting Files to MGU Format
Tips and tricks to solve problems with MGU files
Problematic MGU files can usually be resolved by making small changes in your software. See the tips below to help fix common issues.
Are there any techniques or tools available to repair a damaged MGU file?
In a data recovery program, open the damaged MGU file and select the "Repair" menu option. Wait for the recovery process to finish as it will automatically restore the damaged audio files.
How do I know if my MGU file has been damaged?
The signs of corrupted MGU audio files can manifest as:
- Error alerts occur when actions are performed on the file;
- The file shows slow performance when edited in Band-in-a-Box;
- The file encounters problems during the opening process or shows error indications;
- An unexplained increase in the size of the MGU file;
- The file causes MuseScore or other software to hang or crash during various operations;
What factors contribute to MuseScore crash?
Lack of software updates is a possible reason behind MuseScore crash. Keep your Werner Schweer products up to date by installing the latest updates.
Restarting your computer is an essential troubleshooting step that can resolve many common problems. It is recommended to restart your computer before making any changes to the software settings.