referencesource/file-format-signatures

File format magic numbers Canonical, always-current version: https://referencesource.org/file-format-signatures/ Machine-readable: https://referencesource.org/file-format-signatures/data.json — this mirror is a point-in-time copy. Last verified: 2026-08-03 Stale after: 2027-08-03 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not) Records: 229 The leading bytes (magic number / file signature) that identify a file format, with its… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/file-format-signatures.