Windows 3.1x Compressed File — file signature 4B 57 41 4A at offset 0

For Windows 3.1x Compressed File, hex signature is 4B 57 41 4A; offset is 0; extension is ??_, recorded from its source on 2026-08-03.

Hex signature: 4B 57 41 4A
Offset: 0
Extension: ??_ verified
Format: Windows 3.1x Compressed File verified

Sourceen.wikipedia.org

Verified2026-08-03

Review by2027-08-03

DatasetFile format magic numbers

What the source says

??_ | Windows 3.1x Compressed File

— en.wikipedia.org, retrieved 2026-08-03

Source

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

Last verified against source: 2026-08-03. Due for re-check by 2027-08-03. This page as Markdown · OKF bundle · full dataset as JSON.