TTE

application/octet-stream

Safe

Magic Bytes

Offset: 0
00 01 00 00 00

The TTE file format is a TrueType Extension container developed by Microsoft Corporation for use within the Windows operating system. This format primarily stores user-defined characters created through the Private Character Editor, allowing for the integration of custom glyphs and symbols into existing font libraries. As a legacy format, it is considered safe for general use, though its relevance has diminished with the widespread adoption of modern Unicode standards and OpenType technology.

Extension

.tte

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .tte files in Python

Python
def is_tte(file_path: str) -> bool:
    """Check if file is a valid TTE by magic bytes."""
    signature = bytes([0x00, 0x01, 0x00, 0x00, 0x00])
    with open(file_path, "rb") as f:
        return f.read(5) == signature

How to validate .tte files in Node.js

Node.js
function isTTE(buffer: Buffer): boolean {
  const signature = Buffer.from([0x00, 0x01, 0x00, 0x00, 0x00]);
  return buffer.subarray(0, 5).equals(signature);
}
Go
func IsTTE(data []byte) bool {
    signature := []byte{0x00, 0x01, 0x00, 0x00, 0x00}
    if len(data) < 5 {
        return false
    }
    return bytes.Equal(data[:5], signature)
}

API Endpoint

GET /api/v1/tte
curl https://filesignature.org/api/v1/tte

Related Formats