I have been having issues with "dirty" iges files. I have started using "step" where possible as that they come in clean compared to iges files. I have an issue where I have to deal with iges files only. I contacted a friend who directed me to the import data doctor. I have never seen this before as that we manufacture an oem product. I am looking for any information on how and where this tool can be used. Ten years on pro and always finding new things.