Open ACS file

ACS files: what are they and how do I open them?

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.acs file type #1: Microsoft Agent character structured storage

An acs file extension is related to the Microsoft Agent. An acs file contains character structured storage data.

Further details:

The acs file extension is associated with Microsoft Agent, a now discontinued feature of Windows OS.

The acs files contain animated characters created with Microsoft Agent.

The technology employs animated characters, text-to-speech engines, and speech recognition software to enhance interaction with computer users.

Open file with:

Microsoft Agent

A program for installing interactive animated characters to Windows

.acs file type #2: AtariTools-800 font

Files with acs file extension is associated with the AtariTools-800 font format.

Further details:

The acs file extension is related to the AtariTools-800, a development tool for Microsoft Windows operating system, which enables users to create graphics for Atari computers.

The acs file stores font for AtariTools-800.

Open file with:


Windows toolkit dedicated to ATARI 400/800



A viewer of pictures in native formats of classic computers

.acs file type #3: Hexen ACS script

An acs file extension is related to the ACS (Action Code Script) a scripting language developed for Hexen video game.

Further details:

The acs file extension is associated with the Hexen, a fantasy 3D first person shooter video game, for MS-DOS and later ported for other platforms.

The acs file stores script written for Hexen.

ACS (Action Code Script) is used to creating interactive environments even in id Tech 1 engine (Doom, Heretic, Hexen, Strife etc.), originally introduced in Hexen and later used in various Doom source ports. ACS record is similar to C/C++ programming language.

Open file with:

HeXen icon


A 3D action first person shooter computer game

Doom Builder

A Level editor for Doom/Heretic/Hexen games

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.acs" has the file extension "acs". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

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In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

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