# Microsoft Access Database — file signature 00 01 00 00 53 74 61 6E 64 61 72 64 20 4A 65 74 20 44 42 at offset 0

For Microsoft Access Database, hex signature is 00 01 00 00 53 74 61 6E 64 61 72 64 20 4A 65 74 20 44 42; offset is 0; extension is mdb, verified against its source on 2026-09-22.

- **Hex signature:** 00 01 00 00 53 74 61 6E 64 61 72 64 20 4A 65 74 20 44 42 _(verified: appears in the quote below)_
- **Offset:** 0 _(verified: appears in the quote below)_
- **Extension:** mdb _(verified: appears in the quote below)_
- **Format:** Microsoft Access Database _(verified: appears in the quote below)_

## What the source says

> 00 01 00 00 53 74 61 6E 64 61 72 64 20 4A 65 74 20 44 42 | ␀␁␀␀Standard Jet DB | 0 | mdb | Microsoft Access Database |

## 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/).