File Extension Library


.H1T File Extension

  • Developer by: Microsoft Corporation
  • Category: System Files

What are .H1T files and how to open them?

Can't open .H1T file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .H1T file.

What is a .H1T file extension?

.H1T file extension is created by Microsoft Corporation. .H1T has been classified as System Files.

.H1T is Microsoft Windows Assistance Platform client help related data

Table of Contents - This defines the master TOC and which Titles to include.

Similar to MS Help 2.x .HxT file The h1t file defines the content and organization of a table of contents (TOC) for a collection. For Help and Support content, the .h1t file defines the table of contents for all content in the OEM and Corporate namespaces (each namespace has its own .H1T file).

The h1t file contains general properties for the TOC as a whole and for each node. The TOC provides a structured view of the Help content for a collection. When a user opens the TOC and selects a topic title, the content file associated with that topic opens.


How to open:

You cannot open this file type manually, it is accessed by the Windows automatically.

How to convert:

Probably cannot be converted to anything else.

How to fix problems with .H1T files

  1. You need to update the application that you normally use to open .H1T files. Only the latest version of the software supports the current .H1T file format
  2. You need to check the .H1T file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)