.rda
1 claimant
0 primary
0 secondary
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.
2.0M
total files
667.3K
first seen 2021–2025 (32.8%)
2020
median year (half its files since)
Case variants in archive: .rda (1.4M), .Rda (582.7K), .RDA (5.7K), .RDa (4.9K), .RdA (32), .rDa (20) — aggregated above.
Attribution status
This extension is attributed to R — every claim across all sources (including secondary ones) points to a single language.
Authoritative sources: ✗ Linguist · no claim ✗ Pygments · no claim ✗ Wikidata · no claim △ Wikipedia · secondary
Claimants (1)
Languages that list
.rda among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| R | wikipedia | proposed |
Wikidata says… (1)
File formats, image formats, audio codecs and other non-PL
entities that claim
.rda 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 |
|---|---|---|---|---|---|
| R Data Format Family Q40672098 file format family | file format family | — | — | — | Use as new PL ↗ |
SWH-mined examples (0)
No archived examples for .rda in our local mirror yet.