# Autodesk Inventor File Tools: IPT/IAM Viewer & STEP Converter

Open Autodesk Inventor IPT and IAM files online, troubleshoot missing assembly references, verify dimensions and convert supported geometry to STEP.

This hub collects CADProps workflows for Autodesk Inventor **IPT parts** and **IAM assemblies**.

Use it for browser inspection, assembly dependency checks and neutral STEP conversion.

To convert IAM to STEP or IPT to STEP, go straight to the [Inventor to STEP converter](https://www.cadprops.com/tools/inventor-to-step/index.md). An IPT gives an exact STEP when its B-Rep is read completely; an IAM exports a mesh STEP built from the display triangles Inventor saved. To view without converting, use the [IPT/IAM viewer](https://www.cadprops.com/tools/inventor-viewer/index.md).

## Open IPT and IAM files online

Use the [Inventor viewer](https://www.cadprops.com/tools/inventor-viewer/index.md) for supported IPT parts and packaged IAM assemblies.

IAM assemblies can depend on IPT files and nested IAM files, so preserve relative paths inside a ZIP.

## Convert Inventor to STEP

Use the [Inventor to STEP converter](https://www.cadprops.com/tools/inventor-to-step/index.md) when the next CAD/CAM system needs neutral geometry. A mesh STEP contains triangles, so ask for a STEP export from Inventor when the recipient needs exact assembly surfaces.

Verify one known dimension, expected components and important interfaces after conversion.

## IPT guides

- [How to open an IPT file without Inventor](https://www.cadprops.com/guides/open-ipt-without-inventor/index.md)
- [CAD conversion checklist](https://www.cadprops.com/guides/cad-conversion-checklist/index.md)
- [Why STEP does not preserve native feature history](https://www.cadprops.com/guides/step-export-no-feature-tree/index.md)

## IAM assembly guides

- [How to open an IAM file without Inventor](https://www.cadprops.com/guides/open-iam-without-inventor/index.md)
- [IAM missing parts and broken references](https://www.cadprops.com/guides/iam-missing-parts/index.md)

A partial IAM can still produce plausible dimensions and geometry properties for the loaded subset. Keep incomplete status with every result.

## What to verify

1. source Inventor release when compatibility matters;
2. intended top-level IAM;
3. dependency completeness;
4. one known dimension and units;
5. component/body scope;
6. converted STEP in the receiving workflow.

## Native editing versus exchange

STEP is useful for cross-CAD handoff but does not preserve Inventor sketches, constraints, parameters or feature history as native editable features.

Keep the IPT/IAM source package for traceability and future authoring work.

## Related resources

See the [format compatibility matrix](https://www.cadprops.com/supported-formats/index.md) and [CAD sample files](https://www.cadprops.com/examples/index.md) for broader reference material.

HTML page: https://www.cadprops.com/inventor/