{
  "id": "magic/rar",
  "family": "magic",
  "slug": "rar",
  "title": "RAR signature (Rar!\\x1a\\x07)",
  "summary": "A RAR archive begins with 'Rar!' (52 61 72 21) followed by 0x1A 0x07. RAR 1.5-4.x append a single 0x00 (7 bytes total); RAR 5.0+ append 0x01 0x00 (8 bytes total).",
  "kind": "signature",
  "aliases": [
    "RAR magic",
    "Rar!"
  ],
  "status": "proprietary",
  "verification": "verified",
  "tier": "C",
  "source_url": "https://www.rarlab.com/technote.htm",
  "source_version": "RARLAB RAR 5.0 archive format technote (signature 'Rar!\\x1a\\x07\\x01\\x00')",
  "retrieved_date": "2026-05-29",
  "attribution": [
    {
      "claim_ref": "ext.magic_hex",
      "source_url": "https://www.rarlab.com/technote.htm",
      "source_version": "retrieved 2026-05-29",
      "note": "RAR 5.0 signature: 52 61 72 21 1A 07 01 00. RAR 4.x: 52 61 72 21 1A 07 00."
    },
    {
      "claim_ref": "ext.notes",
      "source_url": "https://en.wikipedia.org/wiki/List_of_file_signatures",
      "source_version": "retrieved 2026-05-29",
      "note": "Corroborates the 7-byte (v1.5-4) and 8-byte (v5) RAR signatures."
    }
  ],
  "see_also": [
    "magic/zip",
    "magic/7z"
  ],
  "ext_type": "file-signature@1",
  "ext": {
    "magic_hex": "52 61 72 21 1A 07",
    "offset": 0,
    "magic_ascii": "Rar!\\x1a\\x07",
    "extensions": [
      "rar"
    ],
    "mime": "application/vnd.rar",
    "spec": "RARLAB RAR archive format technote",
    "notes": [
      "RAR 1.5-4.x: 52 61 72 21 1A 07 00 (7 bytes).",
      "RAR 5.0+: 52 61 72 21 1A 07 01 00 (8 bytes).",
      "RAR is a proprietary format; only extraction (unrar) is openly documented."
    ]
  },
  "updated": "2026-05-29T00:00:00Z"
}