| Converting from IGES to think3 | A general explanation about how to convert IGES models to think3. |
| Conversion table | The conversion table which lets you know if an IGES entity can be converted to a think3 entity, and, if it can, which the corresponding entity is. |
| Log file | An explanation about the log file which is automatically created when an IGES file is loaded. |
| Error file | An explanation about the error file which is automatically created when an IGES file is loaded. |
| Converting from think3 to IGES | A general explanation about how to convert think3 models to the IGES format. |
| Conversion table | The conversion table which lets you know to which IGES entities think3 entities are converted. |
| Log file | An explanation about the log file which is automatically created when an IGES file is saved. |
| Error file | An explanation about the error file which is automatically created when an IGES file is saved. |