IGS File - opening and understanding

Did your computer fail to open an IGS file? We explain what they are used for and recommend software that we know can open or otherwise handle your .IGS files.

What is an IGS file?

Files that contain the .igs file extension are most commonly associated with 2D and 3D vector graphic images. The IGS file format is based on the IGES (Initial Graphics Exchange Specification) standard. This standard is used by a variety of CAD (computer aided drawing) applications.

IGS files are saved in a text-based ASCII format. This allows for the saving and exporting of vector data. The IGS format has become the standard file format for transferring 3D model files between different CAD programs. This allows a user who has created a model file in one application to send it to a user who does not have that same software program without worrying about whether or not the recipient will be able to open the file.

How to open IGS files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension IGS for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different IGS openers which you will find listed below.

Suggest another file format using extension IGS

While we know of one file format using the .IGS file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .IGS file.

Various viewers for this file format

These apps are known to open certain types of IGS files. Remember, different programs may use IGS files for different purposes, so you may need to try out a few of them to be able to open your specific file.

IGS ViewerIGS ViewerUser submitted
MillMillUser submitted
RhinocerosRhinocerosUser submitted
MastercamMastercamUser submitted
Indigo RendererIndigo RendererUser submitted
ABViewerABViewerUser submitted
Adobe AcrobatAdobe AcrobatUser submitted
CadFaster-QuickStepCadFaster-QuickStepUser submitted
EdgecamEdgecamUser submitted
TruTops ConvertTruTops ConvertUser submitted
We have not verified any software that we know for certain will work with IGS-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with IGS-files. If you know one, please use the 'Suggest a program' link below and tell us about it!