Type: System Files
Acronym: Windows Help File
Opens With: Adobe Robohelp 9, Help Explorer Viewer
File used by Windows Help, a program provided with Windows that lets users read help information; contains documentation and indexes for Windows programs or the Windows operating system; compiled using Microsoft Help Workshop (HCW.e x e).
HLP files can be viewed with the Windows Help Viewer (WinHlp32.e x e), which is provided with the Windows operating system. Older versions of help files may have trouble being viewed in newer versions of Windows.