File Extension Library


.HT3 File Extension

  • Developer by: Microsoft Corporation
  • Category: Document Files

What are .HT3 files and how to open them?

Can't open .HT3 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 .HT3 file.

What is a .HT3 file extension?

.HT3 file extension is created by Microsoft Corporation. .HT3 has been classified as Document Files.

.HT3 is HTML document

The ht3 file extension is occasionally used for HTML documents.

Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications.

Very rare used file extension.

.HT3 file format is deprecated and this file format is no longer supported.

Currently, .HT3 file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

Use compatible tools to work with *.ht3 files.

How to convert:

Possibly can be exported to other formats.

How to fix problems with .HT3 files

  1. You need to update the application that you normally use to open .HT3 files. Only the latest version of the software supports the current .HT3 file format
  2. You need to check the .HT3 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)