.z
2 claimants
1 primary
0 secondary
unambiguous primary
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.
547.0K
total occurrences
293.0K
since 2019 (53.6%)
1970–2023
years active
Case variants in archive: .z (407.9K), .Z (139.1K) — aggregated above.
Attribution status
This extension is attributed to Z as primary by 1 authoritative claim.
Authoritative sources: ✗ Linguist · no claim ✗ Pygments · no claim ✓ Wikidata · Q29209269 △ Wikipedia · secondary
Claimants (2)
Languages that list
.z among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Z | wikidata | primary |
| x3d | wikipedia | proposed |
Wikidata says… (10)
File formats, image formats, audio codecs and other non-PL
entities that claim
.z 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 |
|---|---|---|---|---|---|
| Z Q29209269 file format | file format | — | application/x-compress | — | Use as new PL ↗ |
| compress Q291486 Unix shell compression program | compression software; standard UNIX utility or command | — | application/x-compress; application/x-compressed | — | Use as new PL ↗ |
| Compress compressed data Q105853426 file format | file format | — | application/octet-stream | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .z in our local mirror yet.