LSO File Extension
Logic Audio Project
- File Type lso
- Developer Apple
- Popularity
- Application Apple Logic Pro
- Category Audio Files
What is a LSO file?
Logic Audio Project, identified by the LSO extension, is a Audio Files type and includes 667 files.
With the creation of the Logic Audio Project (LSO), Apple introduced file format along with 72 programs built for their use.
LSO files are supported by Mac OS. You can open a LSO file using one of 2 programs, for example Apple Logic Pro and Apple Logic Studio.
How to open a LSO file?
The most common reason why a LSO file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
The most popular programs for working with LSO files are Apple Logic Pro and Apple Logic Studio. To get the latest version of Apple Logic Pro, open the Apple website where a universal installer for all operating systems is available.
Once setup is done, your operating system should assign Apple Logic Pro as the default app for LSO files.
Make Apple Logic Pro the default LSO viewer
Changing the default program in Windows
- Start by right-clicking on your LSO file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- Inside the popup window, scroll through the list of applications and specifically choose Apple Logic Pro as the application to associate with your LSO file;
- Check the "Always use this app" checkbox and click "OK".
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired LSO file to access a dropdown menu of actions;
- Select "Open in application" and click "Other";
- Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
- In this menu, choose "All Programs" and navigate to Apple Logic Pro. Check the box next to "Always open in app" to make it the default program.
How to edit a LSO file?
To edit LSO files, you need to install specialized software that allows you not only to open but also to modify audio files. Online LSO editors usually provide fewer features than software created specifically for Logic Audio Project.
List of Top LSO editors 2026
Following these criteria, we have put together a list of recommended LSO editors.
| LSO Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Apple Logic Pro | Apple | Mac OS | 4.7 out of 5 (37 reviews) |
| Apple Logic Studio | Apple | Mac OS | 4.5 out of 5 (36 reviews) |
Finding answers to LSO file problems
If you encounter issues with LSO files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.
What are the signs that my LSO file is damaged?
Corrupted LSO audio files may have one or more of the following symptoms:
- Poor performance when editing a file in Apple Logic Pro;
- Opening or processing the file in Apple Logic Pro or other programs causes instability or crashes in the program;
- The file shows errors when trying to open it or does not open completely;
- Unexpected expansion of the total size of the LSO file;
- Working with the file triggers the display of error messages;
Why does Apple Logic Pro quit or crash unexpectedly?
Apple Logic Pro crashes can be attributed to outdated software. Make sure you have installed the latest updates for Apple products.
A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.
What methods can be used to repair a damaged LSO file?
Use a recovery program to open the damaged LSO file and navigate to the "Repair" menu item. Wait for the recovery process to finish, as it will automatically repair damaged audio files.