.nb
5 claimants
4 primary
1 secondary
shared primary (4)
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.
388.2K
total occurrences
131.2K
since 2019 (33.8%)
1998–2023
years active
Case variants in archive: .nb (388.0K), .NB (230), .Nb (9) — aggregated above.
Attribution status
This extension is attributed to Mathematica; NB; Wolfram; Wolfram Language; Wolfram Language as primary by 5 authoritative claims.
Authoritative sources: △ Linguist · secondary ✓ Pygments ✓ Wikidata · Q15241057 ✗ Wikipedia · no claim
Claimants (7)
Languages that list
.nb among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| Mathematica | pygments | primary |
| NB | pygments | primary |
| Wolfram | pygments | primary |
| Wolfram Language | pygments | primary |
| Wolfram Language | wikidata | primary |
| Text | linguist | secondary |
| Wolfram Language | linguist | secondary |
Wikidata says… (5)
File formats, image formats, audio codecs and other non-PL
entities that claim
.nb 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 |
|---|---|---|---|---|---|
| HTC splashscreen Q28206272 file format | file format | — | — | — | Use as new PL ↗ |
| Mathematica Notebook Q15860313 file format used by Mathematica | file format | — | application/vnd.wolfram.mathematica; application/mathematica | — | Use as new PL ↗ |
| Mathematica Notebook (headerless) Q105866986 file format | file format | — | application/vnd.wolfram.mathematica | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .nb in our local mirror yet.