File Sharing Problems

Can Microsoft 365 Web Apps Open Files on Network Drives? | Fixes

Phi Hung Vo Oct 1, 2026 869 views

Question details

The user wants to know if it is possible to open Word or Excel files stored on a local network drive directly using Microsoft 365 web applications.

Can Microsoft 365 Web Apps Open Files on Network Drives?

Product: Microsoft 365
Device & OS: not provided
Scenario: Attempting to access and edit documents located on a local desktop network share via a web browser using Microsoft Office web versions.
Observed behavior: Microsoft 365 web apps are unable to open the files because they are designed exclusively for cloud-based storage locations.

Before you start

Before proceeding, check if you have an active OneDrive or SharePoint account, or verify if the desktop version of Microsoft Office is installed on your computer.

Solution 1Recommended

Upload the File to OneDrive or SharePoint

Since Microsoft 365 web apps require cloud storage, transferring your network files to OneDrive or SharePoint is the most effective way to edit them in your browser.

Microsoft 365 web applications are specifically designed to work within cloud-based environments. Local network drives are not directly accessible from the web browser due to security restrictions and architecture limitations.

Log in to Microsoft 365

Open your web browser, navigate to office.com, and log in to your Microsoft 365 account.

Open Cloud Storage

Click the App Launcher (waffle icon) in the top left corner and select either OneDrive or SharePoint.

Upload the Network File

Click the 'Upload' button near the top of the interface and select 'Files'. Browse to your local network drive, select the documents you need, and upload them.

Open in Web App

Once the upload is complete, simply click on the file name to open and edit it directly in the Word or Excel web app.

Upload the File to OneDrive or SharePoint

Auto-Save Enabled: Once the file is in OneDrive or SharePoint, your edits will be saved automatically as you work in the web application.

Solution 2

Open the File Using Microsoft Office Desktop Apps

If you prefer to keep your files strictly on the local network drive without uploading them to the cloud, you must use the desktop version of Word or Excel.

Free Microsoft Office alternative

Edit Network Drive Files Easily with WPS Office

If you are restricted by Microsoft 365 web apps not opening local network files and don't want to upload sensitive data to the cloud, switch to WPS Office. As a free, lightweight, and highly compatible alternative, WPS Office desktop applications allow you to seamlessly open, edit, and save documents directly on your network drives.

1. Install WPS Office: Download and install the free WPS Office suite on your desktop device.
2. Open the Document: Launch WPS Office, click 'Open' on the home screen, and browse to your local network drive to select the file.
3. Edit Locally: Edit your document normally. All changes will be saved directly to your shared network drive without syncing to the cloud.

Edit files directly on local and network drives without requiring cloud uploads.Fully compatible with Microsoft Office formats (.docx, .xlsx, .pptx).Lightweight installation and fast performance on Windows, Mac, and Linux.Familiar user interface with no steep learning curve for Office users.

Frequently Asked Questions

Why can't Microsoft 365 web apps access my local network drives?

Web browsers operate in a secure sandbox environment that prevents web applications from directly accessing local file systems, including mapped network drives, for security reasons. Microsoft 365 web apps are built to interface exclusively with cloud storage ecosystems like OneDrive and SharePoint.

Can I map a network drive to OneDrive to bypass this limitation?

You cannot natively map a local network drive directly to OneDrive. However, you can use the OneDrive sync client to sync a SharePoint document library to your local computer, which bridges the gap between local file explorer access and cloud availability.

Does WPS Office support opening files from a shared network drive?

Yes, the desktop version of WPS Office can seamlessly open, edit, and save documents directly on local network shares and mapped drives without requiring you to upload them to any cloud service first.

Document & File Issues