TMX
application/x-tmx
Magic Bytes
Offset: 0
3C 74 6D 78
Translation Memory eXchange (TMX) is an XML-based open standard created by the OSCAR group and currently maintained by GALA for the vendor-neutral exchange of translation memory data. It enables localization professionals to transfer bilingual or multilingual content between various computer-aided translation tools without losing structural or linguistic metadata. The format is generally considered secure, though software parsers must guard against standard XML-related vulnerabilities such as external entity injection when processing files from untrusted sources.
Validation Code
How to validate .tmx files in Python
Python
def is_tmx(file_path: str) -> bool:
"""Check if file is a valid TMX by magic bytes."""
signature = bytes([0x3C, 0x74, 0x6D, 0x78])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .tmx files in Node.js
Node.js
function isTMX(buffer: Buffer): boolean {
const signature = Buffer.from([0x3C, 0x74, 0x6D, 0x78]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsTMX(data []byte) bool {
signature := []byte{0x3C, 0x74, 0x6D, 0x78}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/tmx
curl https://filesignature.org/api/v1/tmx