{"success":true,"data":{"ext":"acs","name":"MS Agent Character file","description":"MS Agent Character (.acs) is a file format created by Microsoft for packaging animated agent characters used by the Microsoft Agent platform. It was used in desktop assistants, interactive help systems, and applications that displayed speech, animation, and scripted behavior. The format is legacy and largely obsolete, and files from untrusted sources should still be handled cautiously as with any executable-associated content.","mime":[],"risk_level":"Safe","signatures":[{"hex":"C3 AB CD AB","offset":0,"sources":[{"name":"Gary Kessler","url":"https://www.garykessler.net/library/file_sigs_GCK_latest.html"}]}],"related":[],"usage":{"python":"def is_acs(file_path: str) -> bool:\n    \"\"\"Check if file is a valid ACS by magic bytes.\"\"\"\n    signature = bytes([0xC3, 0xAB, 0xCD, 0xAB])\n    with open(file_path, \"rb\") as f:\n        return f.read(4) == signature","node":"function isACS(buffer: Buffer): boolean {\n  const signature = Buffer.from([0xC3, 0xAB, 0xCD, 0xAB]);\n  return buffer.subarray(0, 4).equals(signature);\n}","go":"func IsACS(data []byte) bool {\n    signature := []byte{0xC3, 0xAB, 0xCD, 0xAB}\n    if len(data) < 4 {\n        return false\n    }\n    return bytes.Equal(data[:4], signature)\n}"}}}