Windows 3.x/95/98 Help file — file signature 3F 5F at offset 0

For Windows 3.x/95/98 Help file, hex signature is 3F 5F; offset is 0; extension is hlp, verified against its source on 2026-09-22.

Hex signature: 3F 5F verified
Offset: 0 verified
Extension: hlp verified
Format: Windows 3.x/95/98 Help file verified

Sourceen.wikipedia.org

Verified2026-09-22

Review by2027-09-22

DatasetFile format magic numbers

What the source says

3F 5F | ?_ | 0 | hlp | Windows 3.x/95/98 Help file |

— 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.