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

For Windows 3.x Program Manager Program Group file format, hex signature is 50 4D 43 43; offset is 50; extension is grp, recorded from its source on 2026-08-03.

What the source says

3 64 62 66 | sdbf | 8 | sdb | Windows customized database | 50 4D 43 43 | PMCC | 0 | grp | Windows 3.x <https://en.wikipedia.org/wiki/Program_Manager> Program Manager Program Group file format | 4B 43 4D 53 | KCMS | 0 | icm | <https://en.wikipedia.org/wiki/ICC_profile> ICC profile | 72 65 67 66 | regf | 0 | dat hiv | <https://en.wikipedia.org/wiki/Windows_Re

— 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.