# 04 22 4D 18 — File format magic numbers

For 04 22 4D 18, offset is 0; extension is lz4; format is LZ4 Frame Format, verified against its source on 2026-08-03.

- **Hex signature:** 04 22 4D 18
- **Offset:** 0
- **Extension:** lz4
- **Format:** LZ4 Frame Format

## What the source says

> wiki/Lempel–Ziv–Markov_chain_algorithm> LZMA2 compression | 04 22 4D 18 | ␄"M␘ | 0 | lz4 | <https://en.wikipedia.org/wiki/LZ4_(compression_algorithm)> LZ4 Frame Format [ 62 ] Remark: LZ4 block format does not offer any magic bytes. [ 63 ] | 4D 53 43 46 | MSCF | 0 | cab | Microsoft Cabinet file | 53 5A 44 44 88 F0 27 33 | SZDDˆð'3 | 0 | ?? _ | Microsoft compr

## Source

- https://en.wikipedia.org/wiki/List_of_file_signatures

Last verified: 2026-08-03. Review by: 2027-08-03.
Part of [File format magic numbers](https://referencesource.org/file-format-signatures/).