---
type: lookup
id: pst-21-42-44-4e
asset: file-format-signatures
title: "21 42 44 4E — File format magic numbers"
sources:
  - https://en.wikipedia.org/wiki/List_of_file_signatures
source_quote: "ikipedia.org/wiki/Windows_Registry> Windows Registry file | 21 42 44 4E | !BDN | 0 | pst | Microsoft Outlook <https://en.wikipedia.org/wiki/Personal_Storage_Table> Personal Storage Table file | 44 52 41 43 4F | DRACO | 0 | drc | 3D model compressed with Google Draco [ 88 ] | 47 52 49 42 | GRIB | 0 | grib grib2 | Gridded data (commonly weather observations or"
generated: true
verified: false
harvested: 2026-08-03
stale_after: 2027-08-03
hex_signature: "21 42 44 4E"
offset: "21"
extension: "pst"
format: "Microsoft Outlook Personal Storage Table file"
unverified_fields: format
---
**Hex signature:** 21 42 44 4E

**Offset:** 21

**Extension:** pst

**Format:** Microsoft Outlook Personal Storage Table file

> ikipedia.org/wiki/Windows_Registry> Windows Registry file | 21 42 44 4E | !BDN | 0 | pst | Microsoft Outlook <https://en.wikipedia.org/wiki/Personal_Storage_Table> Personal Storage Table file | 44 52 41 43 4F | DRACO | 0 | drc | 3D model compressed with Google Draco [ 88 ] | 47 52 49 42 | GRIB | 0 | grib grib2 | Gridded data (commonly weather observations or

Source: <https://en.wikipedia.org/wiki/List_of_file_signatures>