.NC File Extension

.NC File Extension

File Type 1

Mastercam Numerical Control File

Developer CNC Software
Popularity
3.8  |  58 Votes
Category CAD Files
Format Binary

What is an NC file?

An NC file is a data file created by CNC Mastercam, a suite of CAD tools used for designing and manufacturing mechanical components. It contains numerical control instructions for directing a CNC machine tool, such as a drill or boring tool, during the production of the component.

More Information

You most likely will only encounter a Mastercam NC file if you are an engineer or machinist that designs and produces mechanical components with Mastercam software. NC files are created when a user saves a 2D or 3D machine toolpath in Mastercam. Users typically save their NC file(s) to a portable storage device, such as a USB flash drive, then transfer it to a CNC machine tool to cut the toolpath from a piece of material, such as wood, plastic, or metal.

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Programs that open NC files

Windows
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File Type 2

NetCDF File

Developer Unidata
Popularity
3.3  |  18 Votes
Category Data Files
Format N/A

What is an NC file?

Data file created in the netCDF (network Common Data Form) format, a format used for storing multidimensional data in a manner independent of the platforms and disciplines for which it is used; often used by scientific researchers for GIS, atmospheric, climate, and ocean model data, as well as for data in other related fields; includes descriptive information about the data in addition to the data itself; used for storing and interchanging data.

More Information

NC files can be manipulated using Unidata's free netCDF tools, a set of libraries that provide interfaces in the Java, C, C++, Fortran, and Perl programming languages. The netCDF tools maintain backward compatibility with any previous file format versions. NC files are also supported by many other applications and command line utilities.

The netCDF format is recognized by organizations such as NASA's Earth Science Data Standards group, the Open Geospatial Consortium, and the Federal Geographic Data Committee.

Programs that open NC files

File Type 3

mcrypt Encrypted File

Developer N/A
Popularity
3.7  |  11 Votes
Category Encoded Files
Format N/A

What is an NC file?

An NC file is a file encrypted with mcrypt, a Linux crypting utility that allows users to encrypt and decrypt files or data streams. It contains a file encrypted with an algorithm, such as md5, tiger, or whirlpool, specified by the user and secured with a passphrase.

More Information

mcrypt is a tool that replaces the crypt() package and crypt(1) command. The program provides the option to encrypt and compress a file with GNU zip (gzip) compression, which appends the ".gz.nc" extension to the file, or encrypt and compress a directory as a TAR archive compressed with gzip, which appends the ".tar.gz.nc" extension to the file.

Programs that open NC files

Linux
Free
File Type 4

DSTV Numerical Control File

Developer Deutscher Stahlbau-Verband
Popularity
4.0  |  2 Votes
Category CAD Files
Format Text

What is an NC file?

An NC file is an ASCII text file used to represent a piece of steel. It contains data that computer numerical control (CNC) machines use to drill into, cut, punch, or otherwise alter steel, so it can be used to build a structure. NC files are saved in the Deutscher Stahlbau-Verband (DSTV) file format.

More Information
Screenshot of a .nc file in Steel Projects CAD Viewer
NC file open in Steel Projects CAD Viewer

The Deutscher Stahlbau-Verband is a German association that represents the interests of the German steel industry. In the 1990s, to help standardize data transfers between computer-aided design (CAD) programs and CNC machines, the association created the DSTV file format. Various CAD programs use the DSTV format to save the information that CNC machines need to alter a piece of steel, so the steel can be used to build a structure. Notably, each DSTV file corresponds to one, specific component included in a structure (though it may be used to create multiple copies of that component).

Because DSTV is an open standard, various CAD programs save DSTV files using different extensions, including .nc, .nc1, and .cnc. The Deutscher Stahlbau-Verband recommends that programs save DSTV-format files as NC files. Notably, Autodesk Advance Steel and Tekla Structures save DSTV-format files as NC files.

How do I open an NC file?

You can open an NC file in a variety of steel-related CAD programs and viewers, including:

  • Autodesk Advance Steel (Windows)
  • Tekla Structures (Windows)
  • Steel Projects CAD Viewer (Windows)

Because NC files are ASCII text files, you can also open them using any text editor if you wish to view the text they contain.

Programs that open NC files

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