It appears that Autodesk 3D scene files (.a3s) can be converted or exported to other 3D modeling formats, including the standard IGES format (.igs, .iges). Sadly, we do not know about any other 3rd party tools that could capable of this conversion, so your only option would be Autodesk software.
Home > Search converters: a3s to igs
Conversion of a3s file format to igs file format beta
Search for a3s to igs converter or software able to handle these file types.
Convert Autodesk 3D scene file to IGES 3D exchange format.
We have found one software suitable in our database for this conversion.
Microsoft Windows software 
- convert a3s to igs on Windows
3ds Max (3D Studio Max)
A popular 3D animation software, 3ds Max (previously known as 3D Studio Max) is used by professional to create stunning 3D content. It contains modeling capabilities, flexible plug-in architecture, scripting language, etc. It is mostly used by computer game developers. It is also used to create movie visual effects. 3ds Max is only for Microsoft Windows.
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from a3s file | No | Yes | Yes | a3s editor | Yes | No | No | No |
to igs file | No | No | No | No | No | Yes | Yes | No |
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.
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