.RDL File Extension

MicroStation Redline File

Developer	Bentley Systems
Popularity	3.3 \| 3 Votes

What is an RDL file?

Vector-based drawing format used by Bentley Microstation; saved as a "reference attachment" and is displayed with an active model, such as a .DGN or .DWG file; used for plotting or construction purposes.

More Information

RDL files typically have a similar name as the corresponding model they reference and should be saved in the same folder.

Programs that open RDL files

Windows

Bentley MicroStation

Bentley Redline

Autodesk AutoCAD 2025

Free Trial

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