DGN file format description

Many people share .dgn files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .dgn file can be edited, converted or printed with. On this page, we try to provide assistance for handling .dgn files.

1 filename extension(s) found in our database.

.dgn - Bentley MicroStation Drawing

The DGN document files are related to Bentley MicroStation. The DGN file is a Bentley MicroStation Drawing. Bentley System Microstation is a 3D CAD software for drawing and construction.

Bentley MicroStation
Document files
- / -
Bentley MicroStation Drawing related extensions:
ClarisWorks 3 Document
Scrapbook Factory Deluxe Scrapbook
Haansoft Nexcel Document
Apple Logic Studio WaveBurner Document
Microsoft Excel 2007 Document
ComicRack WebComic Document

Naturally, other applications may also use the .dgn file extension. Even harmful programs can create .dgn files. Be especially cautious with .dgn files coming from an unknown source!

Can't open a .dgn file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .dgn file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cgn, dbn, dfn, dg, dgb, dgm, dn, dng, dnn, drn, dtn, dvn, dyn, egn, gdn

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

DotNetNuke Manifest Data
Lotus Freelance Graphics Diagram
Sierra Print Artist Sign Data
Auto-trol Tech Illustrator Drawing
Daqarta External Gain Data
DRAKON Editor diagram

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .dgn file format, then write to us!

DataTypes.net >> DGN file