Windows 3.x Program Manager Program Group file format — file signature 50 4D 43 43 at offset 0

For Windows 3.x Program Manager Program Group file format, hex signature is 50 4D 43 43; offset is 0; extension is grp, verified against its source on 2026-09-22.

What the source says

50 4D 43 43 | PMCC | 0 | grp | Windows 3.x Program Manager Program Group file format |

— 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.