File Format & Compatibility

Does OneNote for Windows 11 Support MP3 Audio Files?

Maira Mehtab Sep 22, 2026 869 views

Question details

The user is inquiring about MP3 file support in OneNote for Microsoft 365 on Windows 11, specifically regarding natively recording audio and inserting existing MP3 files.

Product: Microsoft OneNote
Device & OS: Windows 11
Scenario: Attempting to record audio directly in a notebook or add existing MP3 audio files to a page.
Observed behavior: Clarification is needed on whether the application supports MP3 formatting natively for audio notes or if they can only be used as attachments.

Before you start

Ensure your OneNote application is updated to the latest version of Microsoft 365 on Windows 11, and that the MP3 file you wish to insert is saved locally on your device.

Solution 1Recommended

Insert an MP3 File as a File Attachment

While OneNote's built-in recording tool might use a different native format, you can easily attach existing MP3 files to any notebook page for playback.

By inserting an MP3 file as an attachment, it will be stored directly on the OneNote page. You can open and play it using the default media player on your Windows 11 device.

Open your notebook

Launch OneNote for Microsoft 365 and navigate to the specific page where you want to add the audio file.

Navigate to the Insert tab

Click on the 'Insert' tab located in the top ribbon menu.

Select File Attachment

Click on 'File Attachment' (or choose 'File' depending on your specific layout).

Choose the MP3 file

Browse your computer's folders, select your desired MP3 file, and click 'Insert' to place the file icon onto your page.

Playback Behavior: Double-clicking the MP3 attachment will launch it in your system's default audio player, rather than playing it in a built-in OneNote media widget.

Solution 2

Exporting Built-In Audio Recordings

If you used OneNote's native recording feature, you may be able to save the resulting audio file as an MP3, depending on your version.

Free Microsoft Office alternative

Try WPS Office for Comprehensive Document Management

If you are looking for a versatile and lightweight office suite for Windows 11, WPS Office is an excellent free alternative. It seamlessly handles a variety of document formats with high compatibility and offers an intuitive tabbed interface.

1. Download and install: Visit the official WPS Office website to download the free installer for Windows 11 and complete the quick installation process.
2. Open existing files: Launch WPS Office and open your existing Word, Excel, or PowerPoint files without losing any formatting.
3. Manage documents: Use the all-in-one tabbed interface to view, edit, and organize your work efficiently in a single window.

Highly compatible with Microsoft Office formats including Word, Excel, and PowerPoint.Lightweight installation ensures smooth performance on Windows 11 devices.Includes built-in PDF editing, annotation, and format conversion tools.Free to download, making it easy to migrate your existing workflows.

Frequently Asked Questions

What default audio format does OneNote use for its native recording feature?

By default, OneNote typically records audio in WMA or M4A formats, depending on whether you are using the older OneNote for Windows 10 app or the current OneNote for Microsoft 365.

Can I play an attached MP3 file directly inside OneNote without opening another app?

No, OneNote relies on your system's default media player to play attachments. When you double-click the attached MP3 file, it will open and play in your default audio application on Windows 11.

Is there a file size limit for inserting MP3 files into OneNote?

Yes, if you are syncing your notebooks to OneDrive or SharePoint, file attachments are typically restricted by Microsoft's cloud upload limits, which generally range between 50MB and 100MB per file depending on your setup.

Document & File Issues