.IGES (.IGS, .IGES)

Initial Graphics Exchange Specification

Learn about .iges (.igs, .iges) files - Initial Graphics Exchange Specification. Find software to open, compatibility information, and alternatives.

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.IGES (.IGS, .IGES)
Initial Graphics Exchange Specification

What is a .iges (.igs, .iges) file?

File Extension Details

The IGES (Initial Graphics Exchange Specification) file format is a vendor-neutral file format that allows the digital exchange of information among Computer-Aided Design (CAD) systems. It is primarily used to transfer 2D and 3D geometry data, along with associated non-geometric data such as annotations, dimensions, and manufacturing information, between different CAD/CAM/CAE software packages. IGES files store data in ASCII format, making them relatively platform-independent. While IGES was a widely used standard for many years, it has largely been superseded by newer formats like STEP (Standard for the Exchange of Product Data) due to limitations in representing complex geometries and the potential for data loss during translation. However, IGES remains relevant for legacy systems and for exchanging data with older software that may not support newer formats. The format supports various geometric entities, including lines, arcs, splines, surfaces, and solids. The specification defines a structured way to represent these entities and their relationships, enabling different CAD systems to interpret and display the data accurately. Despite its age, IGES continues to be a useful tool for interoperability in specific scenarios.

Software Compatibility

Programs that can open and work with .iges (.igs, .iges) files

Windows

Compatible Applications

AutoCAD Compatible
SolidWorks Compatible
CATIA Compatible
NX (formerly Unigraphics) Compatible
Creo Parametric (formerly Pro/ENGINEER) Compatible
FreeCAD Compatible
DraftSight Compatible
Rhino Compatible
IronCAD Compatible
TurboCAD Compatible

macOS

Compatible Applications

AutoCAD for Mac Compatible
Rhino for Mac Compatible
FreeCAD Compatible
TurboCAD Mac Compatible
Onshape (web-based) Compatible

Linux

Compatible Applications

FreeCAD Compatible
BRL-CAD Compatible
Open Cascade Technology (OCCT) based viewers Compatible
Onshape (web-based) Compatible

Mobile

Mobile Applications

Autodesk A360 (iOS/Android) Compatible
Onshape (iOS/Android) Compatible
eDrawings (iOS/Android) Compatible

Frequently Asked Questions

About .iges (.igs, .iges) files

To open a .iges (.igs, .iges) file, you need compatible software. Here are some options:

  • AutoCAD
  • SolidWorks
  • AutoCAD for Mac
  • FreeCAD
  • Autodesk A360 (iOS/Android)

To convert a .iges (.igs, .iges) file to another format, you can:

  1. Use compatible software Many programs that open .iges (.igs, .iges) files also allow you to save or export them to different formats.
  2. Try online conversion services: Websites like Zamzar, CloudConvert, or Online-Convert allow you to convert files between different formats without installing software.
  3. Specialized conversion tools: Search for '.iges (.igs, .iges) converter' to find tools specifically designed for this file type.

  1. Verify the file extension is correct:
  2. Update your software:
  3. Try alternative software:
  4. Check for file corruption:

Like any file type, .iges (.igs, .iges) files can be safe or potentially risky depending on their source:

  • Always scan files with antivirus software before opening
  • Keep your operating system and applications updated.
  • Be especially cautious with executable file types

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