HST File

What are HST files and how to open them

Are you having problems opening a HST file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your HST files.

What is a HST file?

HST files have multiple uses, and HSI Raw Bitmap is one of them. Read more about the other uses further down the page.

HSI Raw Bitmap File

HSI stands for Handmade Software Inc. and is a raster image format they invented for use in their MS-DOS-based Image Alchemy software. These images are in either 8-bit or 24-bit color and uncompressed.

How to open HST files

Important: Different programs may use files with the HST file extension for different purposes, so unless you are sure which format your HST file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested seven different HST openers which you will find listed below.

Last updated: January 25, 2025

All known file formats using extension .HST

While HSI Raw Bitmap File is a popular type of HST-file, we know of 3 different uses of the .HST file extension. Different software may use files with the same extension for different types of data.

Citec Trend History Data

We know that one HST format is Citec Trend History Data. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Mosaic Browser History File

Mosaic was one of the first widely available web browsers. It stored users' browsing history in HST files.

This software was discontinued in 1997.

Various apps that use files with this extension

These apps are known to open certain types of HST files. Remember, different programs may use HST files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about HST file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.