{"success":true,"data":{"ext":"sh3","name":"Harvard Graphics presentation file","description":"Harvard Graphics presentation file is a legacy document format created by Software Publishing Corporation for the Harvard Graphics presentation software suite. It was used to store slide decks, charts, diagrams, and speaker notes for business and educational presentations on older DOS and Windows systems. The format is now largely obsolete, and files may require conversion or specialized viewers for access; handling is generally safe, though unknown files should be opened cautiously.","mime":[],"risk_level":"Safe","signatures":[{"hex":"48 48 47 42 31","offset":0,"sources":[{"name":"Gary Kessler","url":"https://www.garykessler.net/library/file_sigs_GCK_latest.html"}]}],"related":[],"usage":{"python":"def is_sh3(file_path: str) -> bool:\n    \"\"\"Check if file is a valid SH3 by magic bytes.\"\"\"\n    signature = bytes([0x48, 0x48, 0x47, 0x42, 0x31])\n    with open(file_path, \"rb\") as f:\n        return f.read(5) == signature","node":"function isSH3(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x48, 0x48, 0x47, 0x42, 0x31]);\n  return buffer.subarray(0, 5).equals(signature);\n}","go":"func IsSH3(data []byte) bool {\n    signature := []byte{0x48, 0x48, 0x47, 0x42, 0x31}\n    if len(data) < 5 {\n        return false\n    }\n    return bytes.Equal(data[:5], signature)\n}"}}}