Autodesk depth slope definition
File type: Settings, options, themes or skins file
A dcn file is an Autodesk depth slope definition file used by Autodesk Civil 3D.
It stores a depth slope definition in plain ASCII text.
File type category:
Settings, options, themes or skins file
Date updated: October 11, 2026
The dcn file extension is associated with Autodesk applications, including Autodesk Civil 3D and other Autodesk CAD software.
A dcn file contains a depth slope definition in ASCII text format. It is a supporting settings file for the associated Civil 3D workflow rather than a drawing file. The format is associated with the multiplatform Autodesk Civil 3D application.
Open a dcn file with Autodesk Civil 3D when it is being used as part of a Civil 3D project or definition. Because the file uses ASCII text, a plain-text editor can also display its contents, but it may not interpret the definition.
A dcn file is a software definition file and has no useful general-purpose conversion target. Use it in Autodesk Civil 3D rather than converting it to a drawing or document format.
Software applications that can open dcn files:
Multiplatform
Software applications that can edit dcn files:
Multiplatform
Software capable of saving dcn files:
Multiplatform
Software apps that create dcn files:
Multiplatform
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