{"success":true,"data":{"ext":"xlt","name":"XLT","description":"Microsoft Excel Template (XLT) is a spreadsheet template format developed and maintained by Microsoft for use in Microsoft Excel. It is used to create reusable workbook structures for reports, forms, budgets, and other spreadsheets that require consistent layout and formulas. XLT is a legacy format associated with earlier versions of Excel; files from untrusted sources should still be handled carefully, as templates may contain macros or embedded content.","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":["xls","ods","ots","wks","xlc","xld"],"usage":{"python":"def is_xlt(file_path: str) -> bool:\n    \"\"\"Check if file is a valid XLT 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 isXLT(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 IsXLT(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}"},"category":"Office"}}