Fix Cannot Load EndNote CWYW Add-In in Word for Mac
Question details
The user encounters an error message in Microsoft Word for Mac indicating that the EndNote CWYW add-in cannot be loaded due to incompatibility.

- Product
- Microsoft Word for Mac
- Device & OS
- Mac
- Scenario
- Launching Microsoft Word or attempting to work on a document when an outdated or unwanted EndNote add-in attempts to load automatically.
- Observed behavior
- An error prompt appears stating that the 'EndNote CWYW Word 16.bundle' add-in is incompatible with the currently installed version of Word, even if the user did not intentionally install it.
Ensure you save all active documents and completely quit Microsoft Word for Mac before attempting to check version numbers, update software, or remove add-in files.
Verify Version Compatibility and Update EndNote
Check if your installed versions of Word and EndNote are compatible, and update EndNote if necessary to clear the compatibility error.
The EndNote CWYW (Cite While You Write) add-in requires specific versions of Microsoft Word to function correctly. Major macOS or Office updates often render older EndNote plugins incompatible, triggering the error on launch.
Open Microsoft Word on your Mac. Click on 'Word' in the top menu bar and select 'About Microsoft Word'. Note down the exact version number displayed in the dialog box.
Visit the official EndNote compatibility web page to verify which version of the CWYW add-in is required for your specific Word for Mac version.
If your versions do not match, download the latest compatible EndNote installer from the official website and run it to update your CWYW add-in.

Uninstall or Remove the EndNote Add-in
If you do not use EndNote intentionally, completely remove the add-in bundle to stop the error message from appearing.
Experience a Bug-Free Writing Environment with WPS Office
Tired of dealing with frustrating add-in errors and compatibility issues in Microsoft Word? Switch to WPS Office for Mac. It provides a lightweight, highly compatible, and free alternative that opens your documents seamlessly without the baggage of outdated third-party extensions.
- 1. Download WPS Office: Visit the official WPS Office website and download the macOS installer.
- 2. Install the App: Open the downloaded file and drag the WPS Office icon into your Applications folder.
- 3. Open Your Documents: Launch WPS Writer and open your existing Word documents with all original formatting perfectly preserved.

Frequently Asked Questions
Why is Word for Mac loading an add-in I didn't manually install?
EndNote may have been bundled with other academic software you installed, left behind by a previous user, or inadvertently transferred from an older Mac via Migration Assistant or Time Machine backups.
Where is the Mac equivalent of the Windows Control Panel to uninstall programs?
Mac OS does not have a Control Panel for uninstalling software. You typically remove apps by dragging them from the Applications folder to the Trash, or by running a specific uninstaller app provided by the software developer.
What is the Mac equivalent of the 'Windows + R' shortcut?
The closest equivalent to the Windows Run dialog on a Mac is Spotlight Search, which you can quickly open by pressing 'Command + Space'. Alternatively, you can use 'Command + Shift + G' in Finder to bring up the 'Go to Folder' search menu.




