File Extension Library


.HTT File Extension

  • Developer by: Microsoft
  • Category: System Files

What are .HTT files and how to open them?

Can't open .HTT 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 .HTT file.

What is a .HTT file extension?

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

.HTT is Hypertext Template File

Hypertext file that is used for defining certain settings in Windows; the file "Folder.htt" contains HTML code that customizes the way folder contents are displayed and includes scripts that access and display information from the FileList control.

The HTT file includes the following information:

  • Style settings
  • FixSize function
  • FormatNumber function
  • Init function
  • SelectionChanged event
  • OnThumbnailReady event
  • Normal Banner DIV
  • Mini-banner DIV
  • Left Info Panel DIV
  • FileList object tag

For more information about the Folder.htt file, view this Microsoft Support article.

How to fix problems with .HTT files

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