{"success":true,"data":{"ext":"cpe","name":"Microsoft Fax Cover Sheet","description":"Microsoft Fax Cover Sheet is a document template format created and maintained by Microsoft for fax cover pages. It is used to prepare standardized fax transmission sheets in Microsoft Office and related Windows fax utilities, allowing users to include recipient details, subject lines, and notes. The format is generally safe to open, but as a legacy Microsoft document type, support may depend on older software or compatibility features.","mime":[],"risk_level":"Safe","signatures":[{"hex":"46 41 58 43 4F 56 45 52 2D 56 45 52","offset":0,"sources":[{"name":"Gary Kessler","url":"https://www.garykessler.net/library/file_sigs_GCK_latest.html"}]}],"related":[],"usage":{"python":"def is_cpe(file_path: str) -> bool:\n    \"\"\"Check if file is a valid CPE by magic bytes.\"\"\"\n    signature = bytes([0x46, 0x41, 0x58, 0x43, 0x4F, 0x56, 0x45, 0x52, 0x2D, 0x56, 0x45, 0x52])\n    with open(file_path, \"rb\") as f:\n        return f.read(12) == signature","node":"function isCPE(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x46, 0x41, 0x58, 0x43, 0x4F, 0x56, 0x45, 0x52, 0x2D, 0x56, 0x45, 0x52]);\n  return buffer.subarray(0, 12).equals(signature);\n}","go":"func IsCPE(data []byte) bool {\n    signature := []byte{0x46, 0x41, 0x58, 0x43, 0x4F, 0x56, 0x45, 0x52, 0x2D, 0x56, 0x45, 0x52}\n    if len(data) < 12 {\n        return false\n    }\n    return bytes.Equal(data[:12], signature)\n}"}}}