File Cannot Open

Fix Files That Will Not Open in Microsoft 365 My Content

Chanuka Geekiyanage Oct 9, 2026 869 views

Question details

The user is unable to open documents located in the Microsoft 365 My Content web interface.

How to Fix Files That Will Not Open in Microsoft 365 My Content

Product: Microsoft 365
Device & OS: not provided
Scenario: Attempting to access or open recently viewed, created, or shared files via the Microsoft 365 My Content section online.
Observed behavior: Files fail to load or open in the browser, potentially due to browser cache conflicts, revoked permissions, broken links, or temporary service issues.

Before you start

Before proceeding, check if the Microsoft 365 cloud service is experiencing a temporary outage and verify that you have a stable internet connection.

Solution 1Recommended

Troubleshoot Browser Cache and Settings

Use this solution to eliminate browser-based conflicts, which are the most common cause of files failing to open in web applications.

Web browsers store temporary data that can sometimes become corrupted or outdated, preventing cloud platforms like Microsoft 365 from loading documents correctly. Extensions and add-ons can also interfere with web scripts.

Clear browser cache and cookies

Navigate to your browser's settings menu, locate the privacy or history section, and select the option to clear browsing data. Ensure that both 'Cookies' and 'Cached images and files' are selected, then confirm the action.

Try an incognito or private window

Open a new incognito or private browsing window (usually accessible via the browser menu or by pressing Ctrl+Shift+N / Cmd+Shift+N). Log into Microsoft 365 and try opening the file again. If it works, an extension or cached data is likely causing the issue.

Disable browser extensions

Go to your browser's extensions or add-ons manager. Temporarily toggle off all active extensions, especially ad-blockers or privacy shields, and refresh the Microsoft 365 My Content page to test if the document opens.

Quick Check: Using a completely different supported browser (such as Edge, Chrome, or Firefox) is an easy way to verify if the issue is isolated to your current browser.

Solution 2

Open Files Directly from Desktop Applications

Bypass the web interface by opening the file directly through your installed Microsoft Office desktop applications.

Solution 3

Verify File Permissions and Links

Confirm that you still have the required access rights to view or edit the document, especially for shared files.

Free Microsoft Office alternative

Use WPS Office to Open and Manage Your Documents Locally

If Microsoft 365 cloud services are experiencing issues or locking you out of your web-based files, WPS Office provides a robust, lightweight desktop alternative. You can easily open, edit, and save your documents without relying purely on a web browser.

1. Download and install: Visit the official WPS website, download the free version of WPS Office, and follow the on-screen installation instructions.
2. Open your document: Launch WPS Office, click on the 'Open' button on the main dashboard, and select the local copy of your document to begin editing immediately.

Fully compatible with Microsoft Word, Excel, and PowerPoint file formats.Free and lightweight alternative to Microsoft 365 subscriptions.Edit files locally without depending on browser cache or cloud connectivity.Familiar user interface for a seamless and intuitive transition.

microsoft office alternative - wps office

Frequently Asked Questions

Why do shared files suddenly disappear from My Content in Microsoft 365?

Shared files may disappear or fail to open if the original owner moves them to a different folder, revokes your access permissions, or deletes the file entirely. Requesting a new sharing link usually resolves this.

Will clearing my browser cache delete my Microsoft 365 documents?

No. Clearing your browser cache only removes temporary website data stored locally on your device to help pages load faster. Your Microsoft 365 documents are safely stored in the cloud on OneDrive or SharePoint.

Can I open Microsoft 365 My Content files if I am offline?

You cannot access the web-based My Content interface while offline. However, if you have synced your files to your computer using the OneDrive desktop app, you can open and edit the local copies offline.

Document & File Issues