AXF (.axf)
.axf file signature | application/octet-stream
The Executable and Linkable Format (ELF) is a standard binary file format defined by the System V Application Binary Interface and used on Unix-like systems. It is used for executables, shared libraries, object files, and core dumps across operating systems such as Linux, BSD, Solaris, and many embedded platforms. ELF files are generally safe to inspect, but like other executable formats they can carry malicious code; they are widely documented and remain a current standard.
Magic Bytes
Offset 0
7F 45 4C 46
Sources: Wikipedia
Extension
.axf
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .axf files in Python
def is_axf(file_path: str) -> bool:
"""Check if file is a valid AXF by magic bytes."""
signature = bytes([0x7F, 0x45, 0x4C, 0x46])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .axf files in Node.js
function isAXF(buffer: Buffer): boolean {
const signature = Buffer.from([0x7F, 0x45, 0x4C, 0x46]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .axf files in Go
func IsAXF(data []byte) bool {
signature := []byte{0x7F, 0x45, 0x4C, 0x46}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/axf
curl https://filesignature.org/api/v1/axf
See the full API documentation for all endpoints and parameters.
Related Formats
Frequently Asked Questions
What is a .axf file?
A .axf file is identified by the magic bytes 7F 45 4C 46 at byte offset 0. The Executable and Linkable Format (ELF) is a standard binary file format defined by the System V Application Binary Interface and used on Unix-like systems. It is used for executables, shared libraries, object files, and core dumps across operating systems such as Linux, BSD, Solaris, and many embedded platforms. ELF files are generally safe to inspect, but like other executable formats they can carry malicious code; they are widely documented and remain a current standard.
What are the magic bytes for .axf files?
The magic bytes for AXF files are 7F 45 4C 46 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .axf file?
To validate a .axf file, read the first bytes of the file and compare them against the known magic bytes (7F 45 4C 46) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .axf files?
There is no officially registered MIME type for .axf files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .axf files?
AXF (.axf) 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.