Home : File Types : DGN File

.DGN File Extension

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File TypeMicroStation Design File

DeveloperBentley Systems
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Rare Uncommon Average Common Very Common
CategoryCAD Files


File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.


2D/3D drawing format used by MicroStation construction design software; based on either the Intergraph Standard File Format (ISFF) or the newer V8 DGN standard; can be converted to the more universal .DWG format by AutoCAD LDT.

More Information

DGN files can be opened by Bentley Systems MicroStation or the free Bentley View program. The DGN format is also supported by several other third-party programs.

The DGN extension is short for "design."

Programs that open DGN files
Bentley Systems Bentley View
Bentley Systems MicroStation
Autodesk AutoCAD 2017
AutoDWG DGN to DWG Converter
IMSI TurboCAD Pro 2016
Oracle AutoVue
ESRI ArcGIS for Desktop
Corel PaintShop Pro X8
IMSI TurboCAD Deluxe v9
Updated 1/16/2013