Office for Mac Issues

How to Fix PowerPoint for Mac Freezing When Opening SharePoint Files

Kushani Nimanthika Oct 8, 2026 869 views

Question details

The user experiences PowerPoint for Mac freezing or becoming completely unresponsive when trying to open presentation files via the 'Open in Desktop App' feature from SharePoint or a web browser.

How to Fix PowerPoint for Mac Freezing When Opening SharePoint Files

Product: Microsoft PowerPoint for Mac, SharePoint
Device & OS: macOS 14.2.1
Scenario: Opening a presentation from SharePoint or a web browser directly into the local PowerPoint desktop application.
Observed behavior: The PowerPoint application freezes or takes an excessive amount of time (over 15 minutes for a 25MB file) to open the file. Opening from Recent files also fails, but downloading the file locally works perfectly.

Before you start

Before troubleshooting, try downloading the file directly to your local drive to ensure the file itself is not corrupted and can be opened normally on your Mac.

Solution 1Recommended

Update Software and Disable Add-ins

Outdated software or conflicting third-party add-ins often cause PowerPoint to freeze when communicating with SharePoint servers.

Ensuring that your operating system, web browser, and Office suite are running the latest versions is the first step in resolving communication protocol issues between SharePoint and macOS.

Update Software

Check for system updates by going to the Apple menu > System Settings > General > Software Update. Then, open PowerPoint, click on 'Help' in the top menu bar, and select 'Check for Updates'.

Disable Add-ins

Open PowerPoint for Mac, navigate to 'Insert' > 'My Add-ins' from the ribbon, and temporarily disable any active add-ins.

Test the File

Go back to SharePoint in your browser and try opening the presentation again using the 'Open in Desktop App' button.

Tip: If the file opens successfully after disabling add-ins, re-enable them one by one to identify the specific add-in causing the freeze.

Solution 2

Clear Cache and Temporarily Disable Security Software

Browser cache issues or strict antivirus software can block the secure connection needed to open SharePoint files directly in the desktop app.

Solution 3

Reset PowerPoint for Mac Preferences

If the app remains unresponsive, resetting the PowerPoint application preferences may resolve underlying configuration errors.

Free Microsoft Office alternative

Try WPS Office for Smooth Presentation Management on Mac

If Microsoft PowerPoint for Mac continues to freeze or struggle with large files, consider switching to WPS Office. It is a lightweight, highly compatible alternative that effortlessly handles heavy PPTX files and offers seamless editing without the frustrating unresponsiveness.

1. Download and Install: Download WPS Office for Mac from the official website and run the installer to set up the lightweight application.
2. Open Your Presentation: Launch WPS Presentation and open your downloaded SharePoint .pptx file directly from your local drive.
3. Edit Seamlessly: Edit, save, and present your slides with high stability, avoiding desktop application freezes.

Fully compatible with Microsoft PowerPoint (.pptx) formats.Lightweight installation ensures fast launch times and smooth performance on macOS.Familiar, easy-to-navigate tabbed interface allows for a zero-learning-curve migration.Built-in cloud storage integration for effortless file management and collaboration.

microsoft office alternative - wps office

Frequently Asked Questions

Why does PowerPoint for Mac freeze only on SharePoint files?

SharePoint files require a constant active connection to Microsoft's servers to sync changes. Network interruptions, strict firewall settings, or corrupted browser caches can disrupt this handoff, causing PowerPoint to freeze while indefinitely waiting for file data.

Can I edit a SharePoint presentation without opening the desktop app?

Yes, you can edit the presentation directly in your web browser by selecting the option to edit in PowerPoint for the Web. This avoids the desktop application entirely and prevents Mac-specific freezing issues.

Does file size affect the 'Open in Desktop App' feature?

Yes, very large files (such as a 25 MB presentation with heavy media elements) take much longer to download into the application's temporary cache. Slow network speeds can make the app appear unresponsive during this background synchronization.

Will resetting PowerPoint by deleting the container folder delete my presentations?

No, removing the 'com.microsoft.Powerpoint' folder from the Library only resets application preferences, window layouts, and temporary cache. Your actual presentation files saved locally or on SharePoint remain entirely untouched.

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