# 00 00 00 0C 4A 58 4C 20 0D 0A 87 0A — File format magic numbers

For 00 00 00 0C 4A 58 4C 20 0D 0A 87 0A, offset is 0; extension is jxl; format is Image encoded in the JPEG XL format, recorded from its source on 2026-08-03.

- **Hex signature:** 00 00 00 0C 4A 58 4C 20 0D 0A 87 0A
- **Offset:** 0
- **Extension:** jxl
- **Format:** Image encoded in the JPEG XL format _(unconfirmed — we could not tie this to the quote below)_

## What the source says

> 45 52 | BLENDER | 0 | blend | Blender File Format [ 90 ] | 00 00 00 0C 4A 58 4C 20 0D 0A 87 0A | ␀␀␀␌JXL␠␍␊‡␊ | 0 | jxl | Image encoded in the <https://en.wikipedia.org/wiki/JPEG_XL> JPEG XL format [ 91 ] | FF 0A | ÿ␊ | 00 01 00 00 00 | ␀␁␀␀␀ | 0 | ttf tte dfont | <https://en.wikipedia.org/wiki/TrueType> TrueType font | 4F 54 54 4F | OTTO | 0 | otf | <https

## 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/).