OpenDocument text document (.odp)

.odp file signature | application/vnd.oasis.opendocument.presentation

OpenDocument text document, presentation, and text document template, respectively.

Safe

Magic Bytes

Offset 0


              50 4B

Sources: Apache Tika

All Known Signatures

4 signature variants are documented for .odp files across multiple sources.

Hex Signature	Offset	Sources
50 4B	0	Apache Tika
50 4B 03 04 50 4B 05 06 50 4B 07 08	0	Wikipedia
50 4B 03 04	0	Gary Kessler
6D 69 6D 65 74 79 70 65 61 70 70 6C 69 63 61 74 69 6F 6E 2F 76 6E 64 2E 6F 61 73 69 73 2E 6F 70 65 6E 64 6F 63 75 6D 65 6E 74 2E 70 72 65 73 65 6E 74 61 74 69 6F 6E	0	Neil Harvey FileSignatures

Extension

.odp

MIME Type

application/vnd.oasis.opendocument.presentation

Byte Offset

Risk Level

Safe

Validation Code

How to validate .odp files in Python

Python

def is_odp(file_path: str) -> bool:
    """Check if file is a valid ODP by magic bytes."""
    signature = bytes([0x50, 0x4B])
    with open(file_path, "rb") as f:
        return f.read(2) == signature

How to validate .odp files in Node.js

Node.js

function isODP(buffer: Buffer): boolean {
  const signature = Buffer.from([0x50, 0x4B]);
  return buffer.subarray(0, 2).equals(signature);
}

How to validate .odp files in Go

func IsODP(data []byte) bool {
    signature := []byte{0x50, 0x4B}
    if len(data) < 2 {
        return false
    }
    return bytes.Equal(data[:2], signature)
}

API Endpoint

GET /api/v1/odp


              curl https://filesignature.org/api/v1/odp

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .odp file?

A .odp file is a OpenDocument text document file. OpenDocument text document, presentation, and text document template, respectively.

What are the magic bytes for .odp files?

The magic bytes for OpenDocument text document files are 50 4B at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .odp file?

To validate a .odp file, read the first bytes of the file and compare them against the known magic bytes (50 4B) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .odp files?

The primary MIME type for .odp files is application/vnd.oasis.opendocument.presentation.

Is it safe to open .odp files?

OpenDocument text document (.odp) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.