Office for Mac Issues

How to Fix Run-Time Error 32815 in Word or Excel for Mac

Ayan MasoodAyan Masood Oct 28, 2026 870 views

Question details

Users encounter a run-time error dialog when launching or operating Microsoft Word or Excel on macOS.

How to Fix Run-Time Error 32815 in Word or Excel for Mac
Product
Microsoft Word and Excel
Device & OS
macOS
Scenario
Running Office applications alongside third-party software components, specifically Adobe Acrobat add-ins.
Observed behavior
The system throws a 'Run-time error 32815' dialog unexpectedly, interrupting the workflow. This is sometimes accompanied by references to MacPDFM or run-time error 53.
Before you start

Ensure all unsaved work in other applications is safely stored, and close Microsoft Word and Excel entirely before proceeding with these troubleshooting steps.

Solution 1Recommended

Update macOS, Office, and Adobe Software

Outdated software versions often cause integration conflicts. Updating all related applications is the primary and safest fix.

Run-time error 32815 is frequently caused by a version mismatch between Microsoft Office, your Mac's operating system, and third-party software like Adobe Acrobat.

1
Check for macOS Updates

Click the Apple menu in the top-left corner of your screen, select 'System Settings' (or 'System Preferences'), and click 'General' > 'Software Update'. Install any available updates.

2
Update Microsoft Office

Open Microsoft Word or Excel. Click 'Help' in the top menu bar, then select 'Check for Updates'. Follow the prompts in the Microsoft AutoUpdate tool to install the latest versions.

3
Update Adobe Applications

Open the Adobe Creative Cloud desktop app or Adobe Acrobat. Go to 'Help' > 'Check for Updates' to ensure your Adobe software and its add-ins are completely up to date.

Update macOS, Office, and Adobe Software
Restart Required: After updating all three environments, restart your Mac completely to ensure the new software integrations load correctly.
Free Microsoft Office alternative

Switch to a Lightweight and Error-Free Office Suite for Mac

Avoid frustrating run-time errors and conflicting add-ins with WPS Office. As a free, lightweight, and highly compatible alternative, WPS Office provides a seamless document editing experience on your Mac without the heavy resource usage.

  1. 1. Download WPS Office: Visit the official WPS Office website and download the macOS installation package.
  2. 2. Install the Application: Open the downloaded .dmg file and drag the WPS Office icon to your Mac's Applications folder.
  3. 3. Open Your Files: Launch WPS Office and directly open your existing Word or Excel files seamlessly.
Fully compatible with Microsoft Word (.docx) and Excel (.xlsx) formatsLightweight architecture minimizes run-time errors and add-in conflictsBuilt-in PDF tools natively handle conversions without third-party add-insFamiliar user interface ensures a zero-learning-curve migration
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Frequently Asked Questions

What is causing the Run-Time Error 32815 on my Mac?

This error is typically triggered by a conflict between Microsoft Office and third-party software add-ins installed on your Mac, most commonly Adobe Acrobat components like MacPDFM.

Do I need the MacPDFM add-in to create PDFs in Word?

No. macOS has a built-in 'Save as PDF' feature accessible from the print dialog, and Microsoft Word natively supports exporting documents as PDFs without requiring Adobe's specific add-in.

Will I lose my files if I reinstall Microsoft Office?

No, your Word documents and Excel spreadsheets are saved separately from the application files. Uninstalling the software will not delete your personal documents, though keeping a Time Machine backup is always recommended.