SharePoint Document Issues

How to Fix Word Styles and Numbered Lists Changing in SharePoint Documents

Maira Mehtab Sep 22, 2026 869 views

Question details

Users experience an issue where Word styles and numbered lists unexpectedly change, reformat, or become corrupted when multiple people edit a shared document.

Product: Microsoft Word, SharePoint
Device & OS: Windows
Scenario: Multiple users co-authoring a shared document stored on SharePoint, using local desktop Word applications with potentially different template configurations.
Observed behavior: Styles and numbered lists become corrupted or change their formatting during collaboration. The issue only occurs in certain shared documents.

Before you start

Before troubleshooting, ask all collaborators to save their work and close the document to prevent syncing conflicts while you diagnose the style formatting issue.

Solution 1Recommended

Disable Automatic Style Updates

Prevents the document from overriding its embedded styles with settings from the individual user's local Normal.dotm template, which is the most common cause of shared document corruption.

When multiple users edit a document, their individual Word configurations can conflict if the document is set to automatically pull styles from local templates. Disabling this feature ensures the document relies only on its own standardized styles.

Open Template Add-ins

In the Word desktop application, navigate to 'File' > 'Options' > 'Add-ins'. At the bottom of the window, select 'Templates' from the 'Manage' drop-down menu and click 'Go'.

Disable the Update Feature

In the 'Templates and Add-ins' dialog box, look under the 'Document template' section. Uncheck the box that says 'Automatically update document styles'.

Apply and Save

Click 'OK' to apply the changes, then save the document back to SharePoint. Communicate with your team to ensure they avoid manually altering core styles while others are actively co-authoring.

When to Enable Automatic Updates: You should only enable 'Automatically update document styles' temporarily when you actively need to repair the document by pulling in styles from a known, clean template. Once repaired, immediately disable it again.

Solution 2

Clear the Office Document Cache

Resolves synchronization glitches and prevents corrupted temporary files from affecting the shared SharePoint document.

Solution 3

Create and Test a Sanitized Copy

Helps isolate whether the style corruption is specific to the document's content or the SharePoint environment, without risking sensitive client data.

Free Microsoft Office alternative

Use WPS Office for Stable Document Collaboration

If you frequently encounter style corruption, list numbering errors, and sync issues in Microsoft Word and SharePoint, consider switching to WPS Office. It provides a lightweight, highly compatible environment for document editing without the complex template sync conflicts.

1. Download WPS Office: Visit the official WPS website to download and install the free WPS Office suite on your Windows device.
2. Open Your Document: Download your problematic .docx file from SharePoint and open it directly in WPS Writer.
3. Edit with Confidence: Enjoy stable formatting and straightforward style controls, ensuring your numbered lists and custom styles remain exactly as you designed them.

Fully compatible with Microsoft Office formats (.docx, .xlsx, .pptx)Stable style management without unexpected local template overridesLightweight application with fast installation and loading timesFree to use with a familiar, easy-to-learn interface

microsoft office alternative - wps office

Frequently Asked Questions

Why do my numbered lists restart or change format in shared documents?

This typically happens when co-authors have different settings in their local Normal.dotm templates, and the document is set to automatically update styles. When different users open the file, their local template overrides the document's list formatting.

Should I turn off AutoSave to fix SharePoint style corruption?

While AutoSave is generally recommended for real-time collaboration, if styles keep corrupting, temporarily disabling AutoSave and saving manually can help you isolate exactly when and by whom the style changes are being triggered.

How do I recover a SharePoint document if the styles are already corrupted?

You can restore a previous, uncorrupted version of the file using SharePoint's 'Version History' feature. Alternatively, you can open a fresh, clean template and copy the content of the corrupted document into it, being careful not to copy the final paragraph mark to avoid carrying over the corruption.

Document & File Issues