---
type: lookup
id: tdf-54-44-45-46
asset: file-format-signatures
title: "54 44 45 46 — File format magic numbers"
sources:
  - https://en.wikipedia.org/wiki/List_of_file_signatures
source_quote: "Telegram Desktop Encrypted File"
generated: true
verified: false
harvested: 2026-08-03
stale_after: 2027-08-03
hex_signature: "54 44 45 46"
offset: "0"
extension: "tdf"
format: "Telegram Desktop Encrypted File"
unverified_fields: extension, hex_signature, offset
---
**Hex signature:** 54 44 45 46

**Offset:** 0

**Extension:** tdf

**Format:** Telegram Desktop Encrypted File

> Telegram Desktop Encrypted File

Source: <https://en.wikipedia.org/wiki/List_of_file_signatures>