# Macromedia Director file format — file signature 58 46 49 52 ?? ?? ?? ?? 33 39 56 4D (little-endian) at offset 0

For Macromedia Director file format, hex signature is 58 46 49 52 ?? ?? ?? ?? 33 39 56 4D (little-endian); offset is 0; extension is dir dxr drx, verified against its source on 2026-09-22.

- **Hex signature:** 58 46 49 52 ?? ?? ?? ?? 33 39 56 4D (little-endian) _(verified: appears in the quote below)_
- **Offset:** 0 _(verified: appears in the quote below)_
- **Extension:** dir dxr drx _(verified: appears in the quote below)_
- **Format:** Macromedia Director file format _(verified: appears in the quote below)_

## What the source says

> 52 49 46 58 ?? ?? ?? ?? 4D 56 39 33 (big-endian) | RIFX????MV93 | 0 | dir dxr drx | Macromedia Director file format [86] [84] [85] | 58 46 49 52 ?? ?? ?? ?? 33 39 56 4D (little-endian) | XFIR????39VM |

## 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/).