Minitab data file (.mtw)
.mtw file signature | application/octet-stream
Magic Bytes
Offset: 0
CF FA ED FE
Minitab data file
Sources: Gary Kessler
All Known Signatures
2 signature variants are documented for .mtw files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| CF FA ED FE | 0 | Gary Kessler |
| D0 CF 11 E0 A1 B1 1A E1 | 0 | Gary Kessler |
Validation Code
How to validate .mtw files in Python
def is_mtw(file_path: str) -> bool:
"""Check if file is a valid MTW by magic bytes."""
signature = bytes([0xCF, 0xFA, 0xED, 0xFE])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .mtw files in Node.js
function isMTW(buffer: Buffer): boolean {
const signature = Buffer.from([0xCF, 0xFA, 0xED, 0xFE]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .mtw files in Go
func IsMTW(data []byte) bool {
signature := []byte{0xCF, 0xFA, 0xED, 0xFE}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/mtw
curl https://filesignature.org/api/v1/mtw
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .mtw file?
A .mtw file is a Minitab data file file. Minitab data file
What are the magic bytes for .mtw files?
The magic bytes for Minitab data file files are CF FA ED FE at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .mtw file?
To validate a .mtw file, read the first bytes of the file and compare them against the known magic bytes (CF FA ED FE) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .mtw files?
There is no officially registered MIME type for .mtw files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .mtw files?
Minitab data file (.mtw) 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.