CND (.cnd)
.cnd file signature | text/plain
Magic Bytes
Offset 0
54 68 69 73 20 69 73 20 54 65 58 2C
Sources: Apache Tika
All Known Signatures
8 signature variants are documented for .cnd files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| 54 68 69 73 20 69 73 20 54 65 58 2C | 0 | Apache Tika |
| 54 68 69 73 20 69 73 20 4D 45 54 41 46 4F 4E 54 2C | 0 | Apache Tika |
| 2F 2A | 0 | Apache Tika |
| 2F 2F | 0 | Apache Tika |
| 3B 3B | 0 | Apache Tika |
| FE FF | 0 | Apache Tika |
| FF FE | 0 | Apache Tika |
| EF BB BF | 0 | Apache Tika |
Extension
.cnd
MIME Type
text/plain
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .cnd files in Python
def is_cnd(file_path: str) -> bool:
"""Check if file is a valid CND by magic bytes."""
signature = bytes([0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C])
with open(file_path, "rb") as f:
return f.read(12) == signatureHow to validate .cnd files in Node.js
function isCND(buffer: Buffer): boolean {
const signature = Buffer.from([0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C]);
return buffer.subarray(0, 12).equals(signature);
}How to validate .cnd files in Go
func IsCND(data []byte) bool {
signature := []byte{0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C}
if len(data) < 12 {
return false
}
return bytes.Equal(data[:12], signature)
}API Endpoint
/api/v1/cnd
curl https://filesignature.org/api/v1/cnd
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .cnd file?
A .cnd file is a CND file.
What are the magic bytes for .cnd files?
The magic bytes for CND files are 54 68 69 73 20 69 73 20 54 65 58 2C at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .cnd file?
To validate a .cnd file, read the first bytes of the file and compare them against the known magic bytes (54 68 69 73 20 69 73 20 54 65 58 2C) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .cnd files?
The primary MIME type for .cnd files is text/plain.
Is it safe to open .cnd files?
CND (.cnd) 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.