IEC (.iec)
.iec file signature | application/octet-stream
DOS MZ executableand its descendants (includingNEandPE)
Magic Bytes
Offset 0
4D 5A
Sources: Wikipedia
Extension
.iec
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .iec files in Python
def is_iec(file_path: str) -> bool:
"""Check if file is a valid IEC by magic bytes."""
signature = bytes([0x4D, 0x5A])
with open(file_path, "rb") as f:
return f.read(2) == signatureHow to validate .iec files in Node.js
function isIEC(buffer: Buffer): boolean {
const signature = Buffer.from([0x4D, 0x5A]);
return buffer.subarray(0, 2).equals(signature);
}How to validate .iec files in Go
func IsIEC(data []byte) bool {
signature := []byte{0x4D, 0x5A}
if len(data) < 2 {
return false
}
return bytes.Equal(data[:2], signature)
}API Endpoint
/api/v1/iec
curl https://filesignature.org/api/v1/iec
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .iec file?
A .iec file is a IEC file. DOS MZ executableand its descendants (includingNEandPE)
What are the magic bytes for .iec files?
The magic bytes for IEC files are 4D 5A at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .iec file?
To validate a .iec file, read the first bytes of the file and compare them against the known magic bytes (4D 5A) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .iec files?
There is no officially registered MIME type for .iec files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .iec files?
IEC (.iec) 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.