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DTN file extension

The table below provides useful information about the .dtn file extension. It answers questions such as:

  • What is the .dtn file?
  • What program do I need to open a .dtn file?
  • How can the .dtn file be opened, edited or printed?
  • How can I convert .dtn files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ TunnelCAD Input/Output File

DTN file is a TunnelCAD Input/Output File. TunnelCAD is a volume calculations and tunnel section editing. It is developed and sold by IQsoft.
DTN format description not yet available
Category: Data files
Application: TunnelCAD
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DTN aliases:
DTN related links:
DTN related extensions:
TunnelCAD Coordinate Data

Other types of files may also use the .dtn file extension.

🚫 The .dtn file extension is often given incorrectly!

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

dt, dtb, dyn, ctn, vtn, stn, dtj, dtg, dnt, dfn, tn, rtn, dtm, dth, drn

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Proben1 Dataset
Linux Device Tree Blob
Tinker Dynamics Computation Data
VTWIN Network Project
Delphi Definition File
LS-DYNA Document
Carlson Survey Road Network File
Desktop Guitarist Music Score
Bentley MicroStation Drawing

🔴 Can't open a .dtn 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .dtn file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .dtn file extension, write to us!

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