No Compression (no preset dictionary) — file signature 78 01 at offset 0

For No Compression (no preset dictionary), hex signature is 78 01; offset is 0; extension is zlib, verified against its source on 2026-09-22.

Hex signature: 78 01 verified
Offset: 0 verified
Extension: zlib verified
Format: No Compression (no preset dictionary) verified

Sourceen.wikipedia.org

Verified2026-09-22

Review by2027-09-22

DatasetFile format magic numbers

What the source says

78 01 | x␁ | 0 | zlib | No Compression (no preset dictionary) |

— 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.