ASC File

What are ASC files and how to open them

Are you having problems opening an ASC 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 ASC files.

What is an ASC file?

ASC files have multiple uses, and 16bit DOS COM COMT Text Converted is one of them. Read more about the other uses further down the page.

16bit DOS COM COMT Text Converted File

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open ASC files

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

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

Last updated: August 5, 2026

All known file formats using extension .ASC

While 16bit DOS COM COMT Text Converted File is a popular type of ASC-file, we know of 23 different uses of the .ASC file extension. Different software may use files with the same extension for different types of data.

3D Studio ASCII Format

The 3D Studio ASCII Format with the extension .ASC is a text-based 3D scene description format created by Discreet for use with Autodesk 3ds Max (formerly Discreet 3D Studio) to represent mesh geometry, materials, lights, cameras and basic animation data in a human-readable form. It is meant as an interchange format to export 3D objects and scenes so they can be viewed or edited by other systems capable of parsing plain ASCII text.

Files in this format are produced by 3ds Max or plugins that support exporting to "ASC / Autodesk 3D Studio ASCII," and are consumed similarly by 3ds Max and compatible viewers or tools. Inside the format, each object has its name, transformation matrix, mesh geometry including vertices and faces (often as a "tri-mesh"), possibly UV texture coordinates and material assignments, as well as information about lights, cameras, and materials. Some viewers may ignore smooth grouping or emissive material color.

An ASC file begins with human-readable ASCII header and keywords. Among technical markers are strings such as NAMED OBJECT, VERTEX LIST, FACE LIST, TRI-MESH, VERTEX 0, VERTICES, FACE 0, FACES. At the very start may appear "Ambientlightcolor:" as ASCII text. These signatures can help in detecting the file type and parsing its structure.

ASC opener for Windows

We have identified one ASC opener that is compatible with this specific type of ASC file.

3DX 3D Model

We know that one ASC format is 3DX 3D Model. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

ActionScript Communication File

Files that contain the .asc file extension are script files that have been written in the ActionScript programming language. These files contain code that is used to control Flash-based applications.

The code stored in the ASC files is executed by the Flash Media Server. It can control various events, such as how the server accesses resources, streams multimedia content to a user, and loads Flash applications. The ASC files can be created by the Adobe Media Encoder or Adobe Flash Media Live Encoder.

ASCII Encoded HP 48 Object File

We know that one ASC format is ASCII Encoded HP 48 Object File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Atlantis SpellCheck Configuration File

We know that one ASC format is Atlantis SpellCheck Configuration File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Attocube Systems 2D Data

We know that one ASC format is Attocube Systems 2D Data. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

BRL-CAD Geometry File

We know that one ASC format is BRL-CAD Geometry File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Cheetah Subtitles File

We know that one ASC format is Cheetah Subtitles File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

ENVI ASCII Plot

We know that one ASC format is ENVI ASCII Plot. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Esri Grid ASCII Data File

We know that one ASC format is Esri Grid ASCII Data File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

LTSpice Circuit Schematic File

We know that one ASC format is LTSpice Circuit Schematic File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

PGP ASCII-Armor File

We know that one ASC format is PGP ASCII-Armor File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

PGP Clear-Text Signed Message File

We know that one ASC format is PGP Clear-Text Signed Message File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

PGP Message File

We know that one ASC format is PGP Message File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

PGP Private/Public Key Block

We know that one ASC format is PGP Private/Public Key Block. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

PGP Signature File

We know that one ASC format is PGP Signature File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Rigaku Smartlab Pole Figure Raw Format File

We know that one ASC format is Rigaku Smartlab Pole Figure Raw Format File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Saltpack Message Data File

We know that one ASC format is Saltpack Message Data File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

SPIP ASCII Export SPM Text

We know that one ASC format is SPIP ASCII Export SPM Text. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Symantec QandA Macro

We know that one ASC format is Symantec QandA Macro. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

WITec Exported Text Data

We know that one ASC format is WITec Exported Text Data. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Wyko OPD ASCII Data

We know that one ASC format is Wyko OPD ASCII Data. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

These apps are known to open certain types of ASC files. Remember, different programs may use ASC 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 ASC file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.