Office Settings & Configuration

Why Excel Downloads Files from Network Shares Before Opening & How to Fix It

Algirdas Jasaitis Oct 10, 2026 868 views

Question details

The user wants to understand and prevent Excel from downloading or caching files locally when attempting to open them directly from a network share location.

Why Excel Downloads Files from Network Shares Before Opening

Product: Microsoft Excel
Device & OS: not provided
Scenario: Opening and editing Excel files hosted on a local network share or remote server environment.
Observed behavior: Excel downloads or locally caches a copy of the network file before opening it, rather than reading it directly from the remote directory.

Before you start

Before modifying your Office or network settings, verify your current Excel version and ensure you have the proper network read/write permissions to access the shared files directly.

Solution 1Recommended

Disable Protected View for Local Network Files

Configure the Trust Center to trust your local network, preventing Excel from downloading temporary copies for security scanning.

By default, Excel opens files from potentially unsafe locations (like network shares or the internet) in Protected View. This process requires Excel to download a temporary local copy to scan for malicious content before granting access.

Open Trust Center Settings

Launch Microsoft Excel, click on the 'File' tab in the top-left corner, select 'Options', and then click on 'Trust Center' in the left-hand pane. Click the 'Trust Center Settings' button.

Adjust Protected View

In the Trust Center window, select 'Protected View' from the left menu. Uncheck the box for 'Enable Protected View for files located in potentially unsafe locations'.

Add a Trusted Location

Navigate to 'Trusted Locations' in the left menu. Check the box that says 'Allow Trusted Locations on my network', click 'Add new location', and enter the path of your network share.

Disable Protected View for Local Network Files

Security Consideration: Only disable Protected View or add Trusted Locations for network shares that are fully secure and managed by your organization's IT department.

Solution 2

Modify Office Document Cache Settings

Change how the Office Upload Center and Excel handle cached files to ensure network documents are not retained locally.

Free Microsoft Office alternative

Try WPS Office for Fast and Direct Network File Access

If Excel's aggressive network caching and Protected View settings are causing delays or unwanted local downloads, WPS Office provides a lightweight, highly compatible alternative. It opens network files quickly without excessive background caching.

1. Download the Installer: Visit the official WPS Office website and click the free download button.
2. Install WPS Office: Run the setup file and follow the on-screen instructions to install the suite on your device.
3. Open Network Files: Launch WPS Spreadsheets and open your network files directly without complex caching delays.

Fully compatible with Microsoft Excel formats including .xlsx, .xls, and .csv.Lightweight architecture ensures faster loading times directly from network shares.Familiar user interface requires no learning curve or retraining.Free to download and use for your daily spreadsheet and office tasks.

Frequently Asked Questions

Why does Excel say my network file is locked for editing?

This usually occurs if another user currently has the file open, or if a temporary hidden lock file (starting with ~$) was left behind after Excel crashed. Ensure the file is closed on all other computers and delete any leftover lock files in the network folder.

Can I completely disable the Office Document Cache?

You cannot completely disable the Office Document Cache as it is deeply integrated into Office for features like AutoSave and co-authoring. However, you can minimize its impact by configuring it to delete cached files automatically when the document is closed.

Does disabling Protected View compromise my computer's security?

Yes, it can. Disabling Protected View for network files removes a layer of security that scans for malicious macros or code. You should only adjust these settings if you are operating on a trusted, secure local area network (LAN).

Can I co-author a shared Excel file without it downloading locally?

No, co-authoring in modern versions of Microsoft Excel requires file synchronization to merge changes from multiple users in real time. This synchronization inherently relies on downloading and syncing a local cached copy.

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