Document
OpenDocument Text is a document format commonly identified by .odt. Use the listed signatures, MIME types, and structure notes to validate files beyond the extension.
50 4B 03 04 PK..SIGNATURE = bytes.fromhex("504b0304")
OFFSET = 0
def is_odt(path: str) -> bool:
with open(path, "rb") as f:
f.seek(OFFSET)
head = f.read(len(SIGNATURE))
return head == SIGNATUREconst SIGNATURE = [0x50, 0x4b, 0x03, 0x04];
const OFFSET = 0;
// bytes: a Uint8Array / Buffer holding the start of the file
export function isOdt(bytes) {
return SIGNATURE.every((byte, i) => bytes[OFFSET + i] === byte);
}package fileid
import "bytes"
var isodtSignature = []byte{0x50, 0x4b, 0x03, 0x04}
const isodtOffset = 0
func IsOdt(b []byte) bool {
end := isodtOffset + len(isodtSignature)
if len(b) < end {
return false
}
return bytes.Equal(b[isodtOffset:end], isodtSignature)
}const SIGNATURE: &[u8] = &[0x50, 0x4b, 0x03, 0x04];
const OFFSET: usize = 0;
fn is_odt(bytes: &[u8]) -> bool {
bytes.get(OFFSET..OFFSET + SIGNATURE.len()) == Some(SIGNATURE)
}<?php
$signature = "\x50\x4b\x03\x04";
$offset = 0;
function is_odt(string $bytes): bool {
global $signature, $offset;
return substr($bytes, $offset, strlen($signature)) === $signature;
}OpenDocument Text is used for data exchange, imports, exports, parser testing, and validation workflows. Encoding, delimiters, versions, and container structure often change implementation behavior.
Document formats may include scripts, attachments, macros, or external references. Sandbox previews and conversions, and avoid opening untrusted files directly.
11 samples help test leading-byte detection, parser errors, upload limits, and download behavior.
Blue Sky ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
01-blue-sky.odt4a16330bb1805e4b7d0ab2e523ba9cc7bf0219cf9a9384d97b09dc25459fd5f9Flower Garden ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
02-flower-garden.odtc0d145f165569327022be523f69a86f1c7659b5ce24cf74fc9ab2bbd004fb2a1Navy Blue Sky ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
03-navy-blue-sky.odtd7a75ff8c4c99ca8cb73fa3ccfc5f417f55e3c19a4b592142a7bd03425f47e08Nature of the Sky ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
04-nature-sky.odtf63c31e2a557698508e9bc958f9cbb778ba16461bf26f1c7de1344c7aaec0c4dSky Landscape ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
05-sky-landscape.odtb38aece434d89cc51695c01f9df78d7d927675ea53a1362d38dddcc8214d5526Starry Sky ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
06-starry-sky.odte7ce9e296b6d2623a53fc00b4e4d34ae2de9bb92a9d03f9f9f19e9523fa5709fBlue Night Sky ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
07-blue-night-sky.odt9dbf72b8748dcc99367b785694e1f41a2b5d43ccf8bd3a2825815d4f4fa39695Hibiscus Flower ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
08-hibiscus-flower.odt00ba59df483126840f6f2566d6a2b1c11556308a0aabbcf6a93c8fe86def8c2aArctic Sky ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
09-arctic-sky.odtb9cb434f38efb29b49d292032ec84f4155404fa87495fa495f3ae9e6fd049833Sunset Rays ODT is a OpenDocument Text sample based on Wikimedia Commons. It can be used to test downloads, parsers, previews, and file type detection.
10-sunset-rays.odt1cda39a6715c4a15409447ff93de167a2d63de3cdb0c47157f2d90dd51491b39NASA Blue Marble ODT is a OpenDocument Text sample based on NASA Image and Video Library. It can be used to test downloads, parsers, previews, and file type detection.
nasa-blue-marble-2012-east.odtafede466a4a8b02370ef80e200fcd16f023a060e792d79631b3b44ce9de0b214OpenDocument Text files begin with the byte signature 50 4B 03 04 ("PK.."). Detect the format by reading these leading bytes rather than trusting the file extension alone.
The MIME type for OpenDocument Text is application/vnd.oasis.opendocument.text.
OpenDocument Text files use the .odt extension. The extension is a convention only and does not guarantee the file contents, so combine it with signature and structure checks.