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TTE (.tte)

.tte file signature | application/octet-stream

TTE is a TrueType-based font file format associated with Apple and Microsoft, and it is maintained through the broader TrueType specification supported by operating-system and font-rendering vendors. It is used to store scalable typefaces for text display, document formatting, and embedded fonts in software, firmware, and device interfaces. The format is generally safe to open, though, like other font files, it can be abused if a parser contains vulnerabilities; some TTE files are legacy resources from older systems.

Safe

Magic Bytes

Offset 0
00 01 00 00 00

Sources: Wikipedia

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);
}

How to validate .tte files in Go

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

See the full API documentation for all endpoints and parameters.

Related Formats

Frequently Asked Questions

What is a .tte file?

A .tte file is identified by the magic bytes 00 01 00 00 00 at byte offset 0. TTE is a TrueType-based font file format associated with Apple and Microsoft, and it is maintained through the broader TrueType specification supported by operating-system and font-rendering vendors. It is used to store scalable typefaces for text display, document formatting, and embedded fonts in software, firmware, and device interfaces. The format is generally safe to open, though, like other font files, it can be abused if a parser contains vulnerabilities; some TTE files are legacy resources from older systems.

What are the magic bytes for .tte files?

The magic bytes for TTE files are 00 01 00 00 00 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .tte file?

To validate a .tte file, read the first bytes of the file and compare them against the known magic bytes (00 01 00 00 00) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .tte files?

There is no officially registered MIME type for .tte files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .tte files?

TTE (.tte) 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.