# Multimedia playlist — file signature 23 45 58 54 4D 33 55 at offset 0

For Multimedia playlist, hex signature is 23 45 58 54 4D 33 55; offset is 0; extension is m3u m3u8, verified against its source on 2026-09-22.

- **Hex signature:** 23 45 58 54 4D 33 55 _(verified: appears in the quote below)_
- **Offset:** 0 _(verified: appears in the quote below)_
- **Extension:** m3u m3u8 _(verified: appears in the quote below)_
- **Format:** Multimedia playlist _(verified: appears in the quote below)_

## What the source says

> 23 45 58 54 4D 33 55 | #EXTM3U | 0 | m3u m3u8 | Multimedia playlist |

## Source

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

Last verified: 2026-09-22. Review by: 2027-09-22.
Part of [File format magic numbers](https://referencesource.org/file-format-signatures/).