DOS MZ executable and its descendants (including NE and PE) — file signature 4D 5A at offset 0

For DOS MZ executable and its descendants (including NE and PE), hex signature is 4D 5A; offset is 0; extension is exe dll mui sys scr cpl ocx ax iec ime rs tsp fon efi, verified against its source on 2026-09-22.

What the source says

4D 5A | MZ | 0 | exe dll mui sys scr cpl ocx ax iec ime rs tsp fon efi | DOS MZ executable and its descendants (including NE and PE) |

— 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.