Windows 9x Compressed File — file signature 53 5A 44 44 at offset 0

For Windows 9x Compressed File, hex signature is 53 5A 44 44; offset is 0; extension is ??_, verified against its source on 2026-09-22.

Hex signature: 53 5A 44 44 verified
Offset: 0 verified
Extension: ??_ verified
Format: Windows 9x Compressed File verified

Sourceen.wikipedia.org

Verified2026-09-22

Review by2027-09-22

DatasetFile format magic numbers

What the source says

53 5A 44 44 | SZDD | 0 | ??_ | Windows 9x Compressed File |

— en.wikipedia.org, retrieved 2026-09-22

Source

en.wikipedia.orghttps://en.wikipedia.org/wiki/List_of_file_signatures

Last verified against source: 2026-09-22. Due for re-check by 2027-09-22. This page as Markdown · OKF bundle · full dataset as JSON.