XSP
text/plain
Magic Bytes
Offset: 0
54 68 69 73 20 69 73 20 54 65 58 2C
The XSP file format is a component of the TeX typesetting system, a software environment originally developed by Donald Knuth for professional mathematical document production. This specific format typically serves as a pre-compiled macro package or style configuration file utilized by TeX engines to accelerate the processing of complex document layouts. As a legacy text-based format, it is considered inherently safe, though modern LaTeX implementations have largely superseded these specialized files.
Validation Code
How to validate .xsp files in Python
Python
def is_xsp(file_path: str) -> bool:
"""Check if file is a valid XSP by magic bytes."""
signature = bytes([0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C])
with open(file_path, "rb") as f:
return f.read(12) == signatureHow to validate .xsp files in Node.js
Node.js
function isXSP(buffer: Buffer): boolean {
const signature = Buffer.from([0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C]);
return buffer.subarray(0, 12).equals(signature);
}
Go
func IsXSP(data []byte) bool {
signature := []byte{0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x54, 0x65, 0x58, 0x2C}
if len(data) < 12 {
return false
}
return bytes.Equal(data[:12], signature)
}API Endpoint
GET
/api/v1/xsp
curl https://filesignature.org/api/v1/xsp