OpenDocument text document (.ott)
.ott file signature | application/vnd.oasis.opendocument.text-template
OpenDocument text document, presentation, and text document template, respectively.
Magic Bytes
Offset 0
50 4B
Sources: Apache Tika
All Known Signatures
2 signature variants are documented for .ott files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| 50 4B | 0 | Apache Tika |
| 50 4B 03 04 | 0 | Gary Kessler |
Extension
.ott
MIME Type
application/vnd.oasis.opendocument.text-template
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .ott files in Python
def is_ott(file_path: str) -> bool:
"""Check if file is a valid OTT by magic bytes."""
signature = bytes([0x50, 0x4B])
with open(file_path, "rb") as f:
return f.read(2) == signatureHow to validate .ott files in Node.js
function isOTT(buffer: Buffer): boolean {
const signature = Buffer.from([0x50, 0x4B]);
return buffer.subarray(0, 2).equals(signature);
}How to validate .ott files in Go
func IsOTT(data []byte) bool {
signature := []byte{0x50, 0x4B}
if len(data) < 2 {
return false
}
return bytes.Equal(data[:2], signature)
}API Endpoint
/api/v1/ott
curl https://filesignature.org/api/v1/ott
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .ott file?
A .ott file is a OpenDocument text document file. OpenDocument text document, presentation, and text document template, respectively.
What are the magic bytes for .ott 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 .ott file?
To validate a .ott 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 .ott files?
The primary MIME type for .ott files is application/vnd.oasis.opendocument.text-template.
Is it safe to open .ott files?
OpenDocument text document (.ott) 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.