SharePoint Document Issues

How to Stop Word Heading and TOC Styles from Changing in SharePoint

Anum Mushtaq Oct 23, 2026 868 views

Question details

Users need to prevent Word heading styles and table of contents formatting from unexpectedly changing when multiple users open the same SharePoint document in the desktop application.

How to Stop Word Heading and TOC Styles from Changing in SharePoint

Product: Microsoft Word / SharePoint
Device & OS: not provided
Scenario: Collaborating on a Word document hosted on SharePoint using the desktop application.
Observed behavior: Custom heading styles, numbering, and table of contents formatting are overwritten or altered when different users open the document.

Before you start

Ensure that all collaborators have saved and closed the document before you make changes to the template settings. Verify which specific template (like Normal.dotm or a custom company template) the document relies on.

Solution 1Recommended

Disable 'Automatically Update Document Styles' Setting

Prevent the document from automatically pulling in style definitions from the attached template each time it is opened.

When a document is set to automatically update styles, opening it on a computer with a different version of the attached template (or a default Normal.dotm) will overwrite your custom headings and TOC.

Open the Document

Launch the Microsoft Word desktop application and open the affected document from SharePoint.

Access Developer Tab

Navigate to the Developer tab on the top ribbon. If it is not visible, enable it by going to File > Options > Customize Ribbon and checking the Developer box.

Open Document Template Settings

Click on 'Document Template' located in the Templates group.

Disable Automatic Style Updates

In the Templates and Add-ins dialog box, uncheck the 'Automatically update document styles' option, then click OK and save your document back to SharePoint.

Disable 'Automatically Update Document Styles' Setting

Consistency Maintained: Disabling this feature ensures your headings and TOC retain their original formatting regardless of who opens the file.

Solution 2

Standardize the Attached Template Across All Users

Ensure everyone collaborating on the SharePoint document uses the exact same version of the template.

Free Microsoft Office alternative

Collaborate Seamlessly with WPS Office

If Microsoft Word's template syncing and SharePoint style changes are disrupting your workflow, consider switching to WPS Office. It provides a highly compatible, lightweight, and stable environment for creating and formatting professional documents without unexpected style shifts.

1. Download and Install: Get WPS Office for free from the official website and install it on your computer.
2. Open Your Document: Launch WPS Writer and open your .docx file. WPS accurately reads and preserves original formatting without forcing local template overwrites.
3. Manage Styles Safely: Use the built-in Style manager to lock in heading and TOC formats securely for all future edits.

Fully compatible with Microsoft Word formats (.docx, .doc, .dotm).Stable style management that preserves your headings and TOC formatting exactly as you set them.Lightweight installation and fast loading times for large documents.Familiar user interface that requires zero learning curve to transition.

microsoft office alternative - wps office

Frequently Asked Questions

Why do my Word styles only change when opened in the desktop app, not the browser?

The browser-based editor uses a simplified rendering engine that does not actively sync with local template files. The desktop app connects to local templates (like Normal.dotm), which can overwrite styles if the auto-update setting is enabled.

How do I fix a Table of Contents that has already lost its formatting?

You must manually reapply the correct heading styles to your document text. Once corrected, right-click the Table of Contents and select 'Update Table' followed by 'Update entire table' to restore the layout.

What is Normal.dotm and how does it affect my SharePoint files?

Normal.dotm is the default global template in Word that stores your default styles and customizations. If collaborators have differently configured Normal.dotm files and the document updates styles automatically, the document will adopt the local user's default styles upon opening.

Document & File Issues