.mtl
1 claimant
1 primary
0 secondary
unambiguous primary
SWH popularity
Distinct files in the full Software Heritage archive (2026-06-04 export), dated by first appearance, following Desmazières, Di Cosmo, Lorentz (MSR 2025). Case-aggregated. citation.
857.9K
total files
374.6K
first seen 2021–2025 (43.7%)
2020
median year (half its files since)
Case variants in archive: .mtl (855.0K), .MTL (2.6K), .Mtl (289) — aggregated above.
Attribution status
This extension is attributed to wavefront-material as primary by 2 authoritative claims.
Authoritative sources: ✓ Linguist ✗ Pygments · no claim ✓ Wikidata · Q105863548 ✗ Wikipedia · no claim
Claimants (2)
Languages that list
.mtl among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| wavefront-material | linguist | primary |
| wavefront-material | wikidata | primary |
Wikidata says… (8)
File formats, image formats, audio codecs and other non-PL
entities that claim
.mtl on Wikidata
(property P1195) or in the Wikipedia infobox.
Source: data/derived/external_extension_index.csv.
Click Use as new PL on any row to open the
Add-PL form pre-filled with that entry's name, Wikipedia/Wikidata
URL, and this extension — one submission creates the PL + claim.
| Format | Class (Wikidata P31) | Suggested label | MIME | Notes | Action |
|---|---|---|---|---|---|
| Wavefront .obj file Q2119595 geometry definition file format | file format; textual data format | — | text/plain; model/obj | — | Use as new PL ↗ |
| Material Template Library Q20965861 file format | file format | — | text/plain; model/mtl | — | Use as new PL ↗ |
| Alias|Wavefront material Q105863548 file format | file format | — | text/plain | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .mtl in our local mirror yet.