Why convert DWL to DWG?
AutoCAD writes a .dwl (Drawing Lock) file next to a .dwg while the drawing is open to prevent conflicting edits in multi-user environments. The file contains only three fields - user name, computer name, timestamp - and no geometry, layers, or graphics of any kind.
About these formats
.DWL
Drawing Lock File (CAD)
A DWL file is not a drawing - it is a small lock file that AutoCAD (or TurboCAD) creates beside a CAD drawing while it is open. It records who has the drawing open so that others cannot…
Open .DWL details →
.DWG
AutoCAD Drawing Database
A DWG file is a CAD drawing, the native format of Autodesk AutoCAD, usually an architectural plan or engineering design. To view, measure, or print one for free, use DWG TrueView (Windows),…
Open .DWG details →Quality & what to watch
- The actual drawing is the
.dwgfile with the same base name in the same directory; the.dwldoes not hold a copy of any drawing data. - A stale
.dwlleft by a crash or dropped connection can be safely deleted once you confirm no one has the drawing open on another machine. - Opening a
.dwlin Notepad reveals its entire contents: a user name, a computer name, and a timestamp - nothing else.
Frequently asked questions
Why does AutoCAD create `.dwl` files?
AutoCAD uses them to signal that a drawing is in use; other users who try to open the same file see a warning and are given read-only access.
Is it safe to delete a `.dwl` file?
Yes, once you confirm the drawing is not open on any machine - a leftover lock file after a crash is harmless to delete.
Can I open a `.dwl` file to read it?
Yes - open it in Notepad; you will see one or two lines with a user name, computer name, and timestamp, and nothing else.
