# 5A 4D — File format magic numbers

For 5A 4D, offset is 0; extension is exe; format is DOS ZM executable, recorded from its source on 2026-08-03.

- **Hex signature:** 5A 4D _(unconfirmed — we could not tie this to the quote below)_
- **Offset:** 0
- **Extension:** exe
- **Format:** DOS ZM executable

## What the source says

> ZM | 0 | exe | <https://en.wikipedia.org/wiki/DOS_ZM_executable> DOS ZM executable and its descendants (rare)

## 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/).