During the translation process, 3ds Max creates log files containing detailed information about the processing of the model. This information includes error messages and entity-mapping statistics. You can use this log file to understand what occurred during the translation.

3ds Max places log files in the directory where the IGES file is either imported from or exported to. The log file name has the prefix name of the 3ds Max file name, with the extension of .xli (input) for import, and .xlo (output) for export.

The log file provides the following information:

• Name of the file processed.
• Number and severity of errors encountered, a description of them, and an explanation of what can be done, or what was done to the data in error. (3ds Max attempts to fix many errors itself.)
• Summary of entities processed.
• List of the entity types encountered and those created.