.spec

4 claimants 2 primary 2 secondary shared primary (2)

SWH popularity

From the SWH-MSR-ARV dataset (Desmazières, Di Cosmo, Lorentz, MSR 2025; file nb_extensions_alphanum.csv) — one row per (ext, year) in the full SWH archive. Case-aggregated. citation.

6.1M
total occurrences
1.3M
since 2019 (21.4%)
1970–2023
years active

Case variants in archive: .spec (6.1M), .SPEC (275), .Spec (94) — aggregated above.

Attribution status

This extension is attributed to RPM Spec; RPM Spec; spec as primary by 3 authoritative claims.

Authoritative sources: ✓ Linguist ✓ Pygments ✗ Wikidata · no claim ✗ Wikipedia · no claim

Disagree or have a correction? Open a labelling issue.

Claimants (5)

Languages that list .spec among their extensions. Strength reflects whether the upstream source treated it as their primary extension.
LanguageSourceStrength
RPM Speclinguistprimary
RPM Specpygmentsprimary
specpygmentsprimary
Pythonlinguistsecondary
Rubylinguistsecondary

Wikidata says… (3)

File formats, image formats, audio codecs and other non-PL entities that claim .spec 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.
Right entry isn't listed? Add manually ↗
FormatClass (Wikidata P31)Suggested labelMIMENotesAction
AmiAtlas Way data Q105851762
file format
file formatapplication/octet-streamUse as new PL ↗
AmigaKonto Specification Q105852836
file format
file formatapplication/octet-streamUse as new PL ↗
RPMSpec file format Q130711801
file format
file formattext/x-rpm-specUse as new PL ↗

SWH-mined examples (1)

Real archived programs with this extension, byte-verified against the SWH archive. Useful for deciding what this extension actually is when the attribution is uncertain.
elementtree.spec · 2055 B · seen 613× in SWH
predicted: unclassified via fallback
swh:1:cnt:ea479f0e00adb5da4da0d562d3b413dc5fecf762;origin=https://github.com/aszeszo/jds;anchor=swh:1:rev:0b20cd6a3970f239c3ad0f8e57a682451a81463c;path=/base-specs/elementtree.spec
Open in SWH · Raw bytes
Request more SWH-mined examples
If the examples above don't disambiguate what .spec is, request a fresh mining run.
(or open the pre-filled issue directly)