Permission & Access Issues

Fix Microsoft Access Locking Linked Text Files on Network

Partner Editor Sep 25, 2026 869 views

Question details

The user needs a way for external automated processes to update a text file that is currently linked as a table and locked by an open Microsoft Access database.

How to Fix Microsoft Access Locking Linked Text Files

Product: Microsoft Access
Device & OS: not provided
Scenario: A text file located on a network drive is regularly updated by an external process, but it is also linked as a table in an active Microsoft Access database.
Observed behavior: When Microsoft Access is open, it places a lock on the linked text file, causing the external automated update process to fail.

Before you start

Review your external update schedule and verify whether the updates occur at fixed times or are triggered by specific network notifications.

Solution 1Recommended

Coordinate Database Closure with the Update Process

The most reliable method to release the file lock is to ensure Microsoft Access is closed when the external update runs.

The Microsoft database engine automatically locks linked text files to maintain data integrity. Bypassing this requires fully releasing the active connection by adjusting your workflow.

Identify the update trigger

Determine whether the external process updates the text file on a rigid schedule or uses a notification-based trigger.

Close Microsoft Access

Manually close the Access database or configure a script to safely shut down the application just before the text file update occurs.

Execute the external update

Allow the external network process to safely write and save the new data to the network text file while Access is closed.

Reopen the database

Relaunch Microsoft Access and reload the linked table to view and work with the freshly updated data.

Coordinate Database Closure with the Update Process

Avoid using copied files: Using a copy of the text file will not solve the issue if Access still maintains a lock on the active file. The lock must be completely released.

Solution 2

Use VBA to Drop and Relink the Text File

If the database must remain open, use a VBA macro to temporarily delete the linked table and relink it after the update completes.

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Frequently Asked Questions

Why does Microsoft Access lock my linked text file?

The database engine places a lock on linked files to prevent data corruption and unexpected schema changes while the database is actively reading or querying the data.

Will setting the text file to read-only prevent locking?

No. Even if linked as read-only, Microsoft Access may still place a shared lock on the file to ensure data consistency during active sessions, which blocks external write processes.

Can I resolve this by sharing or splitting the Access database?

Splitting or sharing the database only resolves locks on the internal Access backend tables. It does not affect how the application locks externally linked flat files like text or CSV files.

Document & File Issues