DTN file format description
Many people share .dtn files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .dtn file can be edited, converted or printed with. On this page, we try to provide assistance for handling .dtn files.
1 filename extension(s) found in our database.
.dtn - 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.
Naturally, other applications may also use the .dtn file extension. Even harmful programs can create .dtn files. Be especially cautious with .dtn files coming from an unknown source!
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 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.
- Open Control Panel > Control Panel Home > Default Programs > Set Associations.
- Select a file type in the list and click Change Program.
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:
ctn, vtn, stn, dyn, dtj, dtg, dt, dnt, dfn, tn, rtn, dtm, dth, dtb, drn
Is it possible that the filename extension is misspelled?
Similar file extensions in our database:
- CADTERNS Sloper
- Carlson Survey Road Network File
- Linux Device Tree Blob
- Delphi Definition File
- Genuine Fractals Image STN
- Desktop Guitarist Music Score
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If you have useful information about the .dtn file format, then write to us!