Support export configuration

**Problem**
When working with models, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

The issue mentions model-related error handling but names no files, tests, entry points, or export format. Start by locating the model error-handling and configuration code, then clarify the intended export behavior and acceptance criteria before making changes; done should include detailed errors and a defined, tested export configuration.

Written by the indexing model from the issue text.