# 4D 53 57 49 4D 00 00 00 D0 00 00 00 00 — File format magic numbers

For 4D 53 57 49 4D 00 00 00 D0 00 00 00 00, offset is 4D; extension is wim swm esd; format is Windows Imaging Format file, recorded from its source on 2026-08-03.

- **Hex signature:** 4D 53 57 49 4D 00 00 00 D0 00 00 00 00 _(unconfirmed — we could not tie this to the quote below)_
- **Offset:** 4D _(unconfirmed — we could not tie this to the quote below)_
- **Extension:** wim swm esd _(unconfirmed — we could not tie this to the quote below)_
- **Format:** Windows Imaging Format file

## What the source says

> Windows Imaging Format file

## 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/).