{"success":true,"data":{"ext":"sxc","name":"OpenOffice spreadsheet","description":"OpenOffice Spreadsheet (SXC) is a spreadsheet file format created by Sun Microsystems and later maintained by the Apache OpenOffice project. It is used to store worksheets, formulas, charts, and related data in OpenOffice Calc and compatible office suites. The format is largely legacy, having been supplanted by OpenDocument formats, and files from untrusted sources should still be opened with standard caution.","mime":["application/vnd.sun.xml.calc"],"risk_level":"Safe","signatures":[{"hex":"50 4B 03 04","offset":0,"sources":[{"name":"Gary Kessler","url":"https://www.garykessler.net/library/file_sigs_GCK_latest.html"}]}],"related":["sxd","sxi","sxw"],"usage":{"python":"def is_sxc(file_path: str) -> bool:\n    \"\"\"Check if file is a valid SXC by magic bytes.\"\"\"\n    signature = bytes([0x50, 0x4B, 0x03, 0x04])\n    with open(file_path, \"rb\") as f:\n        return f.read(4) == signature","node":"function isSXC(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x50, 0x4B, 0x03, 0x04]);\n  return buffer.subarray(0, 4).equals(signature);\n}","go":"func IsSXC(data []byte) bool {\n    signature := []byte{0x50, 0x4B, 0x03, 0x04}\n    if len(data) < 4 {\n        return false\n    }\n    return bytes.Equal(data[:4], signature)\n}"}}}