As both the IGES/IGS and STP/STEP are fairly common CAD formats used for exchange purposes, so it should be fairly easy to find a program that can convert one to another.
Convert ISO-10303 STEP product data to IGES 3D exchange format.
We found 18 software records in the database related to .step to .iges file format conversion.
Microsoft Windows software - convert step to iges on Windows
Leading 2D and 3D CAD development software from Autodesk
Convert from step file format
|Yes, AutoCAD supports step file conversion as a source file type.||Yes||Yes||step editor||Yes||No||No||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned step to iges. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A 2D and 3D CAD construction software
3D viewer and converter with huge file type support
A 3D model converter
A 3D modelling software
Creo Parametric (formerly known as Pro/ENGINEER) is a complete 3D CAD software solution by PTC.
A widely-used 3D animation application from Autodesk
A set of 3D modeling tools
Apple macOS / Mac OS X software - convert step to iges on OS X
Mac version of popular Autodesk AutoCAD software
Multiplatform software - convert step to iges on any platform
An open source multiplatform 3D CAD/MCAD/CAx/CAE/PLM modeler