ODF (.odf)
.odf file signature | application/vnd.oasis.opendocument.formula
Magic Bytes
Offset 0
50 4B
Sources: Apache Tika
Extension
.odf
MIME Type
application/vnd.oasis.opendocument.formula
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .odf files in Python
def is_odf(file_path: str) -> bool:
"""Check if file is a valid ODF by magic bytes."""
signature = bytes([0x50, 0x4B])
with open(file_path, "rb") as f:
return f.read(2) == signatureHow to validate .odf files in Node.js
function isODF(buffer: Buffer): boolean {
const signature = Buffer.from([0x50, 0x4B]);
return buffer.subarray(0, 2).equals(signature);
}How to validate .odf files in Go
func IsODF(data []byte) bool {
signature := []byte{0x50, 0x4B}
if len(data) < 2 {
return false
}
return bytes.Equal(data[:2], signature)
}API Endpoint
/api/v1/odf
curl https://filesignature.org/api/v1/odf
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .odf file?
A .odf file is a ODF file.
What are the magic bytes for .odf files?
The magic bytes for ODF 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 .odf file?
To validate a .odf 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 .odf files?
The primary MIME type for .odf files is application/vnd.oasis.opendocument.formula.
Is it safe to open .odf files?
ODF (.odf) 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.