Permission & Access Issues

How to Fix CSV Files Not Opening from a Shared Network Folder

Partner Editor Oct 10, 2026 869 views

Question details

The user cannot open CSV files located on a shared network folder due to a permission or SharePoint access error, though the files open normally when saved locally.

Fix CSV Files That Cannot Open from a Shared Network Folder

Product: Spreadsheet Software / Windows
Device & OS: Windows
Scenario: Accessing work-related CSV files directly from a shared network directory or SharePoint integration.
Observed behavior: The CSV file fails to open from the network folder, displaying a permission or SharePoint access error. The issue is isolated to a single laptop, and the file opens successfully if resaved as an Excel workbook.

Before you start

Verify that your network connection is stable and ensure that you have standard read/write permissions for the shared network folder.

Solution 1Recommended

Clear Cached Windows Credentials

Since the issue occurs on only one laptop, corrupted cached Windows credentials for the network or SharePoint are the most likely culprit.

Windows stores network and Microsoft 365 authentication tokens in the Credential Manager. When these tokens become outdated or corrupted, file associations and network folder access can fail, particularly for plain text formats like CSV.

Open Credential Manager

Click the Windows Start button, type 'Credential Manager' in the search bar, and press Enter.

Locate Stored Credentials

Select 'Windows Credentials'. Look through the list for any credentials related to Microsoft Office, OneDrive, SharePoint, or the specific network drive.

Remove the Credentials

Click on the credential to expand it, then click 'Remove'. Confirm the action. Repeat this for all relevant network and Office credentials.

Restart and Sign In

Restart your laptop. Once rebooted, try opening the CSV file again. You will be prompted to enter your network or Microsoft 365 password.

Authentication Refreshed: Clearing credentials forces Windows and Office to establish a fresh, verified connection to the shared folder.

Solution 2

Resave the CSV as an Excel Workbook (Workaround)

If you need immediate access to the data, converting the CSV to an XLSX file often bypasses format-specific network locks.

Solution 3

Submit a Support Ticket to IT Admin

Use this solution if local troubleshooting fails and you suspect backend SharePoint integration or account sync issues.

Free Microsoft Office alternative

Open Network CSV Files Easily with WPS Office

Tired of complicated SharePoint credential errors and permission glitches? Switch to WPS Office, a lightweight and highly compatible alternative that easily opens local and network CSV files without unnecessary account sync barriers.

1. Install WPS Office: Download and install the free WPS Office suite from the official website.
2. Open WPS Spreadsheet: Launch the WPS Spreadsheet application and click 'Open' on the left menu.
3. Access Network File: Navigate to your shared network folder, select the CSV file, and open it instantly.

Seamlessly opens .csv, .xls, and .xlsx files without strict credential locksLightweight application that loads network files quicklyFree to use with a familiar, easy-to-navigate interfaceFully compatible with Microsoft Excel document formats

microsoft office alternative - wps office

Frequently Asked Questions

Why do CSV files open locally but not from the shared network folder?

This usually happens when the cached network credentials or authentication tokens on your computer become corrupted. The system blocks the network transfer for security reasons, but since local files don't require network authentication, they open normally.

Will clearing my Windows credentials delete any of my personal files?

No. Clearing Windows Credentials only removes saved passwords and authentication tokens used to automatically log into network drives, websites, or apps. It does not affect your documents or personal data.

How can I check if I actually have permission to view the shared folder?

You can test your permissions by trying to create a new text document directly in the shared folder, or by asking a coworker to see if they can open the exact same CSV file from their computer. If they can open it and you cannot, the issue is likely specific to your device's cached credentials.

Document & File Issues