How to Open DWL File in AutoCAD?

Brief Answer

A DWL file cannot be directly opened in AutoCAD as it is a lock file created by AutoCAD. To access the drawing, open the corresponding DWG file instead.

Understanding DWL and DWL2 Files

DWL files are temporary lock files created by AutoCAD when a DWG file is opened. Their primary purpose is to ensure that multiple users do not edit the same file simultaneously. Similarly, DWL2 files are lock files used in newer versions of AutoCAD, serving the same function but providing compatibility with updated software versions.

Purpose: DWL and DWL2 files help prevent data corruption by signalling that a DWG file is currently in use.
Not a Drawing File: These files do not contain actual drawing data and are not meant to be opened or edited directly.

Accessing the Original DWG File

Locate the DWG File: Find the DWG file associated with the DWL file. The two files will have the same name but different extensions.
Open the DWG in AutoCAD: Double-click the DWG file or open it through AutoCAD to access the drawing.
Automatic Deletion: Normally, the DWL file will delete itself once the DWG file is closed. If it doesn’t, this may indicate that the software did not close properly.

Troubleshooting Persistent DWL Files

If a DWL file remains after closing AutoCAD, follow these steps:

Ensure No Active Editing: Make sure no one is currently editing the DWG file, especially in a multi-user environment.
Manual Deletion: Navigate to the folder where the DWG file is stored and manually delete the DWL file.
Restart AutoCAD: Sometimes, restarting AutoCAD or your computer can resolve issues with persistent DWL files.
End Background Processes: Use the Task Manager to ensure there are no background processes related to AutoCAD still running.

Safety Precautions When Deleting DWL Files

Check for Active Network Connections: If the DWG file is part of a shared network, verify that no users are currently accessing it.
Unsaved Work: Ensure there is no unsaved work associated with the DWG file before deleting the DWL file, as this could lead to data loss.

DWL files can cause certain issues, such as:

Read-Only Errors: When a DWL file persists, users may encounter a message indicating that the DWG file is read-only. This can be resolved by checking for and removing leftover DWL files.
File Access Problems: Sometimes, the presence of an old DWL file can prevent a new session of AutoCAD from properly opening the DWG file.

Solutions:

Close All AutoCAD Sessions: Ensure that all active sessions of AutoCAD are closed.
Delete DWL Files: If no one is using the DWG file, manually delete the DWL or DWL2 file to restore access.

Best Practices for Multi-User Environments

To prevent issues with DWL files in collaborative settings:

Use a Centralized File Management System: Implement a system that manages file check-ins and check-outs.
Communicate with Team Members: Ensure team members are aware of who is currently working on a file to avoid conflicts.
Regularly Save Work: Encourage regular saving of DWG files to minimize the risk of data loss in case of software crashes.

FAQs

Can I prevent DWL files from being created?
No, DWL files are an essential part of AutoCAD’s file management system and are automatically created to prevent simultaneous edits.

What happens if I accidentally delete a DWL file while another user is editing the DWG?
Deleting a DWL file in this scenario can lead to data corruption or loss. Always confirm that no active editing is taking place before deletion.

Key Points to Remember

DWL files are lock files and cannot be opened in AutoCAD.
Always access your drawing through the DWG file.
Persistent DWL files can be manually deleted, but precautions must be taken to ensure no data loss.

In summary, DWL files are crucial for preventing simultaneous edits in AutoCAD and should not be opened directly. To work with your drawings, open the corresponding DWG file. If a DWL file persists, it can be safely deleted once you have confirmed that no active editing is occurring.