Compressed archive file (.arj)
.arj file signature | application/x-arj
Compressed archive file
Magic Bytes
Offset 0
60 EA
Sources: Apache Tika, Wikipedia, Gary Kessler
Extension
.arj
MIME Type
application/x-arj
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .arj files in Python
def is_arj(file_path: str) -> bool:
"""Check if file is a valid ARJ by magic bytes."""
signature = bytes([0x60, 0xEA])
with open(file_path, "rb") as f:
return f.read(2) == signatureHow to validate .arj files in Node.js
function isARJ(buffer: Buffer): boolean {
const signature = Buffer.from([0x60, 0xEA]);
return buffer.subarray(0, 2).equals(signature);
}How to validate .arj files in Go
func IsARJ(data []byte) bool {
signature := []byte{0x60, 0xEA}
if len(data) < 2 {
return false
}
return bytes.Equal(data[:2], signature)
}API Endpoint
/api/v1/arj
curl https://filesignature.org/api/v1/arj
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .arj file?
A .arj file is a Compressed archive file file. Compressed archive file
What are the magic bytes for .arj files?
The magic bytes for Compressed archive file files are 60 EA at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .arj file?
To validate a .arj file, read the first bytes of the file and compare them against the known magic bytes (60 EA) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .arj files?
The primary MIME type for .arj files is application/x-arj.
Is it safe to open .arj files?
Compressed archive file (.arj) 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.