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VML at a glance
VML
Convert to or from VML when migrating legacy Office drawings, cleaning up IE-era web content, or translating Microsoft-specific vector markup into SVG, PNG, or modern document formats.
It is mainly a bridge format for archival recovery and standards migration.
AVI at a glance
AVI
Convert to AVI when an older editor, recorder, analysis tool, or device workflow explicitly expects it, or when preserving compatibility with legacy video archives matters.
It is useful for certain capture and processing chains where AVI remains a known stable interchange wrapper.
For streaming, web playback, and compact delivery, MP4 or WebM are usually stronger options.
Format comparison
| Feature | VML | AVI |
|---|---|---|
| File type | Vector | Video |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | scalable | depends |
| File size characteristics | small | large |
| Compatibility | moderate | moderate |
| Editability | high | limited |
| Created year | 1998 | 1992 |
| Inventor | Microsoft, Macromedia, Autodesk, Hewlett-Packard, Visio | Microsoft |
| Status | legacy | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | good | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | design | delivery |
| Layer support | Not supported | Not supported |
When to use each format
When to use VML
- illustration
- diagramming
- brand asset delivery
- Designed to preserve editable vector and text semantics.
When to use AVI
- editing
- mastering
- streaming delivery
- Historically broad support in Windows-centric media tooling.
FAQs
Why convert VML to AVI?
Convert to AVI when an older editor, recorder, analysis tool, or device workflow explicitly expects it, or when preserving compatibility with legacy video archives matters.
It is useful for certain capture and processing chains where AVI remains a known stable interchange wrapper.
For streaming, web playback, and compact delivery, MP4 or WebM are usually stronger options.
What changes when converting VML to AVI?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from small in VML to large in AVI. Quality profile changes from scalable in VML to depends in AVI. Editability profile changes from high in VML to limited in AVI. Archival profile changes from good in VML to moderate in AVI. Workflow profile changes from design in VML to delivery in AVI.
What should I review after converting VML to AVI?
Check the exported file for It is less elegant than newer containers for many modern codec and streaming use cases.; Users often inherit AVI from older workflows rather than choose it for new ones..