Anark Core can create an XML based report from an opened CAD drawing, in this case IGES. However you may have been looking for a way to convert IGES to 3DXML instead.
Convert IGES 3D exchange format to XML document.
We found one software available in the database for this conversion.
Microsoft Windows software - convert igs to xml on Windows
A 3D product data optimalization software
Convert from igs file format
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.