{"success":true,"data":{"ext":"xld","name":"XLD","description":"XLD is a legacy spreadsheet file format developed by Microsoft for early versions of Excel. It was used to store worksheets, formulas, and tabular data for business, reporting, and data analysis tasks, and may still be encountered in archived office documents. The format is obsolete, and modern spreadsheet applications may open it with limited fidelity; files from untrusted sources should still be handled with standard caution.","mime":["application/vnd.ms-excel"],"risk_level":"Safe","signatures":[{"hex":"4D 69 63 72 6F 73 6F 66 74 20 45 78 63 65 6C 20 35 2E 30 20 57 6F 72 6B 73 68 65 65 74","offset":2080,"sources":[{"name":"Apache Tika","url":"https://raw.githubusercontent.com/apache/tika/main/tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml"}]},{"hex":"46 6F 67 6C 69 6F 20 64 69 20 6C 61 76 6F 72 6F 20 4D 69 63 72 6F 73 6F 66 74 20 45 78 63 65","offset":2080,"sources":[{"name":"Apache Tika","url":"https://raw.githubusercontent.com/apache/tika/main/tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml"}]},{"hex":"42 69 66 66 35","offset":2114,"sources":[{"name":"Apache Tika","url":"https://raw.githubusercontent.com/apache/tika/main/tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml"}]},{"hex":"42 69 66 66 35","offset":2121,"sources":[{"name":"Apache Tika","url":"https://raw.githubusercontent.com/apache/tika/main/tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml"}]},{"hex":"D0 CF 11 E0 A1 B1 1A E1","offset":0,"sources":[{"name":"Apache Tika","url":"https://raw.githubusercontent.com/apache/tika/main/tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml"}]}],"related":["xlc","xll","xlm","xlt","xlw","xla"],"usage":{"python":"def is_xld(file_path: str) -> bool:\n    \"\"\"Check if file is a valid XLD by magic bytes at offset 2080.\"\"\"\n    signature = bytes([0x4D, 0x69, 0x63, 0x72, 0x6F, 0x73, 0x6F, 0x66, 0x74, 0x20, 0x45, 0x78, 0x63, 0x65, 0x6C, 0x20, 0x35, 0x2E, 0x30, 0x20, 0x57, 0x6F, 0x72, 0x6B, 0x73, 0x68, 0x65, 0x65, 0x74])\n    with open(file_path, \"rb\") as f:\n        f.seek(2080)\n        return f.read(29) == signature","node":"function isXLD(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x4D, 0x69, 0x63, 0x72, 0x6F, 0x73, 0x6F, 0x66, 0x74, 0x20, 0x45, 0x78, 0x63, 0x65, 0x6C, 0x20, 0x35, 0x2E, 0x30, 0x20, 0x57, 0x6F, 0x72, 0x6B, 0x73, 0x68, 0x65, 0x65, 0x74]);\n  if (buffer.length < 2109) return false;\n  return buffer.subarray(2080, 2109).equals(signature);\n}","go":"func IsXLD(data []byte) bool {\n    signature := []byte{0x4D, 0x69, 0x63, 0x72, 0x6F, 0x73, 0x6F, 0x66, 0x74, 0x20, 0x45, 0x78, 0x63, 0x65, 0x6C, 0x20, 0x35, 0x2E, 0x30, 0x20, 0x57, 0x6F, 0x72, 0x6B, 0x73, 0x68, 0x65, 0x65, 0x74}\n    if len(data) < 2109 {\n        return false\n    }\n    return bytes.Equal(data[2080:2109], signature)\n}"}}}