.csx
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.
72.5K
total files
18.1K
first seen 2021–2025 (25.0%)
2018
median year (half its files since)
Case variants in archive: .csx (72.2K), .CSX (228), .csX (26), .Csx (1), .cSx (1) — aggregated above.
Attribution status
This extension is attributed to C# as primary by 1 authoritative claim.
Authoritative sources: △ Linguist · secondary ✗ Pygments · no claim ✓ Wikidata · Q2370 ✗ Wikipedia · no claim
Claimants (2)
Languages that list
.csx among their extensions. Strength reflects whether the upstream source treated it as their primary extension.| Language | Source | Strength |
|---|---|---|
| C# | wikidata | primary |
| C# | linguist | secondary |
SWH-mined examples (0)
No archived examples for .csx in our local mirror yet.