DuckDB database file — file signature 44 55 43 4b at offset 8

For DuckDB database file, hex signature is 44 55 43 4b; offset is 8; extension is duck, verified against its source on 2026-08-03.

What the source says

44 55 43 4b | DUCK | 8 | | <https://en.wikipedia.org/wiki/DuckDB> DuckDB database file (source: <https://github.com/duckdb/duckdb/blob/main/src/include/duckdb/storage/storage_info.hpp#L69> Source code ) |

— 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.