DGN File

What are DGN files and how to open them

Are you having problems opening a DGN file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your DGN files.

What is a DGN file?

DGN files have multiple uses, and Bentley MicroStation CAD drawing is one of them. Read more about the other uses further down the page.

Bentley MicroStation CAD drawing

Files that use the .dgn file extension are most commonly associated with the MicroStation construction design software application. The DGN files that are used by this software contain 2D or 3D drawings that are based on the Intergraph Standard File Format or, in some cases, the V8 DGN standard.

How to open DGN files

We have identified six DGN openers that are compatible with this specific type of DGN file.

Programs that open Bentley MicroStation CAD drawing files

Last updated: January 22, 2025

All known file formats using extension .DGN

While Bentley MicroStation CAD drawing is a popular type of DGN-file, we know of 2 different uses of the .DGN file extension. Different software may use files with the same extension for different types of data.

PC-Dragon Cartridge Image

We know that one DGN format is PC-Dragon Cartridge Image. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

While we have not verified the apps ourselves yet, our users have suggested ten different DGN openers which you will find listed below.

Various apps that use files with this extension

These apps are known to open certain types of DGN files. Remember, different programs may use DGN files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about DGN file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.