FTXT (.ftxt)
.ftxt file signature | application/octet-stream
IFFFormatted Text
Magic Bytes
Offset 0
46 4F 52 4D 46 54 58 54
Sources: Wikipedia
Extension
.ftxt
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .ftxt files in Python
def is_ftxt(file_path: str) -> bool:
"""Check if file is a valid FTXT by magic bytes."""
signature = bytes([0x46, 0x4F, 0x52, 0x4D, 0x46, 0x54, 0x58, 0x54])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .ftxt files in Node.js
function isFTXT(buffer: Buffer): boolean {
const signature = Buffer.from([0x46, 0x4F, 0x52, 0x4D, 0x46, 0x54, 0x58, 0x54]);
return buffer.subarray(0, 8).equals(signature);
}How to validate .ftxt files in Go
func IsFTXT(data []byte) bool {
signature := []byte{0x46, 0x4F, 0x52, 0x4D, 0x46, 0x54, 0x58, 0x54}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
/api/v1/ftxt
curl https://filesignature.org/api/v1/ftxt
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .ftxt file?
A .ftxt file is a FTXT file. IFFFormatted Text
What are the magic bytes for .ftxt files?
The magic bytes for FTXT files are 46 4F 52 4D 46 54 58 54 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .ftxt file?
To validate a .ftxt file, read the first bytes of the file and compare them against the known magic bytes (46 4F 52 4D 46 54 58 54) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .ftxt files?
There is no officially registered MIME type for .ftxt files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .ftxt files?
FTXT (.ftxt) 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.