Opening LOCK files

Did your computer fail to open a LOCK file? We explain what LOCK files are and recommend software that we know can open or convert your LOCK files.

What is a LOCK file?

Files that contain the .lock file extension are most commonly associated with Microsoft's .NET Framework. The LOCK file format is used to create "locked" copies of a database file.

When a database is already in use and another user tries to open it, a locked copy of the file will be opened instead of the editable copy. This file is saved with the .lock file suffix. This LOCK file prevents the user from making changes to the file while another user is editing it.

The Adobe Lightroom software application also uses the .lock file extension for locked database files.

Try a universal file viewer

In addition to the products listed above, I would suggest that you try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and very likely yours too! Download Free File Viewer.

By Prof. Jones (The File Expert)

Chief Content Editor and File Expert

Suggestions for this page? Mail me.