Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .hlp

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .hlp file?
  • Which program can create the .hlp file?
  • Where can you find a description of the .hlp format?
  • What can convert .hlp files to a different format?
  • Which MIME-type is associated with the .hlp extension?
Windows Help File .hlp file icon

Windows Help File

HLP fil is a Microsoft Windows Help file.
Category: Document files
Application: WinHelp
Program name: winhlp32.exe
Mime-type: application/x-winhelp
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Windows Help Content
Windows Global Index File
Compiled HTML Help
Answer Wizard Index
HTML Help Table of Contents
Windows Help Project
Compressed HLP File
MS Help 2 Project Attribute Definition
MS Help 2 Project Collection Definition

Other types of files may also use the .hlp file extension. If you have helpful information about .hlp extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Label Designer Plus Document
Lightscape Preparation File
Mentor Graphics HKP Database
HP Graphic Language Document
Meridian Lossless Packing Audio
Milestones Project Companion Project
mAirList Desktop Playlist
Lighthouse Organizer Data
Martus Language Pack

The .hlp filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

mlp (24), lhp (12), hkp (7), lp (7), tlp (5), hpp (5), hmp (5), blp (4), hop (4), nlp (4), hpl (3), hip (3), ulp (2), hl (2), hll (1)

Can't open a .hlp file?

If you want to open a .hlp file on your computer, you just need to have the appropriate program installed. If the .hlp association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.hlp

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012, Windows 7, Windows 8, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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