# CF FA ED FE — File format magic numbers

For CF FA ED FE, offset is 0; extension is |; format is Mach-O binary (reverse byte ordering scheme, 64-bit) [ 33 ], verified against its source on 2026-08-03.

- **Hex signature:** CF FA ED FE
- **Offset:** 0
- **Extension:** |
- **Format:** Mach-O binary (reverse byte ordering scheme, 64-bit) [ 33 ]

## What the source says

> ch-O binary (reverse byte ordering scheme, 32-bit) [ 33 ] | CF FA ED FE | Ïúíþ | 0 | | Mach-O binary (reverse byte ordering scheme, 64-bit) [ 33 ] | 25 21 50 53 | %!PS | 0 | ps | <https://en.wikipedia.org/wiki/PostScript> PostScript document | 25 21 50 53 2D 41 64 6F 62 65 2D 33 2E 30 20 45 50 53 46 2D 33 2E 30 | %!PS-Adobe-3.0 ESPF-3.0 | 0 | eps epsf | <htt

## 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/).