Info · Data quality
How to fix File size anomaly
in IFC files
Reduce file weight: lower tessellation/detail, avoid embedded textures, and export only what is needed.
Check your IFC file — free
No account · No upload · Runs in your browser · 38 validation checks
What it means
The File size anomaly check
File is unusually large per element — over-detailed geometry or embedded textures likely
The fix
How to fix File size anomaly in your authoring tool
Concrete, tool-specific steps. The check itself is schema-agnostic and works for IFC2x3, IFC4, IFC4x1 and IFC4x3.
| Authoring tool | How to fix |
|---|---|
| Revit | Lower the level of detail for export, avoid exporting imported CAD and very high-poly families, and split disciplines. The Reference View MVD produces lighter tessellated geometry. |
| ArchiCAD | Reduce curve/segment resolution, avoid embedding textures, use a lean IFC Translator preset, and export only the needed elements. |
| Tekla | Reduce the export geometry detail/representation and avoid exporting reference models unnecessarily. |
| Allplan | Lower the geometry resolution and avoid embedding textures in the IFC export. |
How it works
Find and fix it in the browser
The whole flow runs client-side — your IFC file never leaves your machine.
01
Open your IFC file
Open IFC Viewer Online and drag & drop your IFC file. It is parsed locally in your browser via WebAssembly — nothing is uploaded.
02
Run the Health Score validation
Run validation. The "File size anomaly" check (RULE_FILE_SIZE_ANOMALY) flags every affected element and pinpoints it in the model tree.
03
Fix in Revit
Lower the level of detail for export, avoid exporting imported CAD and very high-poly families, and split disciplines. The Reference View MVD…
04
Fix in ArchiCAD
Reduce curve/segment resolution, avoid embedding textures, use a lean IFC Translator preset, and export only the needed elements.
05
Fix in Tekla
Reduce the export geometry detail/representation and avoid exporting reference models unnecessarily.
06
Fix in Allplan
Lower the geometry resolution and avoid embedding textures in the IFC export.
07
Re-validate
Re-export from your authoring tool and re-run validation to confirm the issue is resolved and your Health Score improved.
Related checks
Other Data quality checks →
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File size anomaly is 1 of 38 checks. Run the full IFC Health Score to see every issue and a single 0–100 number — free, no account, no upload.
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