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ASC File Type

Writer:   |   Refreshed: November 26, 2018

Microsoft Silver

ASC File Summary

Our most recent information indicates that ASC files are associated with nine unique file types (the most prevalent being the PGP (Pretty Good Privacy) ASCII Armored File format) and can be viewed primarily with Mozilla Thunderbird, including thirty-six other known software applications (listed below). Generally, these files are considered Encoded Files, but they can also be Text Files or Developer Files.

ASC files are found on both mobile and desktop platforms and can be opened using Windows, Mac, and Linux operating systems. ASC files have a "Low" Popularity Rating; this means that they are not present on most devices.

Interested to learn more about the ASC File Extension? We encourage you to view the detailed file information below to learn about the software that opens ASC files, and other troubleshooting tips.

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ASC Types

  9 known file types use this extension

Dominant ASC File Type

.ASC
File Name:.asc
Class:PGP (Pretty Good Privacy) ASCII Armored File

An ASC file is commonly used as an armored ASCII file used by PGP (Pretty Good Privacy) and contains a digital signature and information written in plain text. It may also include binary information encoded as text and also include a key which can only be verified using PGP verification methods.

Author: Symantec Corporation
File Category:Encoded Files
Entry: HKEY_CLASSES_ROOT\.asc

Software Programs That Open The PGP (Pretty Good Privacy) ASCII Armored File:


Mozilla Thunderbird by Mozilla

Windows
Mac
Linux

PGP Desktop by Symantec Corporation

Windows
Mac

Gpg4win by The Gpg4win Initiative

Windows
Mac
Linux

GnuPG by GnuPG Project

Windows
Android
Debian
RPM
RISC
VMS
OS X El Capitan

More ASC Files

.ASC
File Name:.asc
Class:ASCII Text

ASC files are plain text files stored in the ASC format. ASC is an acronym for American Standard Code for Information.

Author: Sublime HQ Pty Ltd
File Category:Text Files

Software Programs That Open ASCII Text Files:


Microsoft Notepad by Microsoft Corporation

Compatible with:

Windows
Mac
Linux

Notepad++ by Don Ho

Compatible with:

Windows
Mac
Linux

MacroMates TextMate by MacroMates

Compatible with:

Mac

Vim by Bram Moolenaar

Compatible with:

Windows
Mac
Linux
Unix
OS X El Capitan

Microsoft WordPad by Microsoft Corporation

Compatible with:

Windows

Gedit by GNOME

Compatible with:

Linux

Apple TextEdit by Apple

Compatible with:

Mac

ES-Computing Edit Plus by ES-Computing

Compatible with:

Windows

Dimenzo Text Editor by Dimenzo, Inc.

Compatible with:

Windows

Sublime Text by Sublime HQ Pty Ltd

Compatible with:

Windows
Mac
Linux

Atom by GitHub, Inc.

Compatible with:

Windows
Mac
Linux

TextWrangler by Bare Bones Software

Compatible with:

Mac

Bean by James Hoover

Compatible with:

Mac

Notepad2 by Open Source

Compatible with:

Windows

Geany by Geany Authors

Compatible with:

Windows
Mac
Linux
Solaris
FreeBSD
NetBSD
OpenBSD

ConTEXT by ConTEXT Project

Compatible with:

Windows

NoteTab by Fookes Software

Compatible with:

Windows

Write! by HamsterCoders

Compatible with:

Windows

NFO Viewer by Microsoft Corporation

Compatible with:

Linux

Leafpad by Freeshell.org

Compatible with:

Windows
Linux
Debian
FreeBSD
NetBSD
OpenBSD

Vi by SourceForge

Compatible with:

Linux

UltraEdit by IDM Computer Solutions

Compatible with:

Windows
Mac
Linux

Kate by KDE

Compatible with:

Windows
Mac
Linux

GetDiz by Outertech

Compatible with:

Windows
.ASC
File Name:.asc
Class:Autodesk ASCII Export File

ASC files associated with Autodesk are text files that contain geometric shapes and points information that is exported by various programs of Autodesk. It saves data in a text format and is also compatible with other programs.

Author: Autodesk, Inc.
File Category:Text Files

Software Programs That Open Autodesk ASCII Export File Files:


Microsoft Notepad by Microsoft Corporation

Compatible with:

Windows
Mac
Linux

MacroMates TextMate by MacroMates

Compatible with:

Mac

Vim by Bram Moolenaar

Compatible with:

Windows
Mac
Linux
Unix
OS X El Capitan

ES-Computing Edit Plus by ES-Computing

Compatible with:

Windows

BBEdit by Bare Bones Software

Compatible with:

Mac

Bean by James Hoover

Compatible with:

Mac

Notepad2 by Open Source

Compatible with:

Windows

Geany by Geany Authors

Compatible with:

Windows
Mac
Linux
Solaris
FreeBSD
NetBSD
OpenBSD

ConTEXT by ConTEXT Project

Compatible with:

Windows

NoteTab by Fookes Software

Compatible with:

Windows

Write! by HamsterCoders

Compatible with:

Windows

Vi by SourceForge

Compatible with:

Linux

UltraEdit by IDM Computer Solutions

Compatible with:

Windows
Mac
Linux

Kate by KDE

Compatible with:

Windows
Mac
Linux
.ASC
File Name:.asc
Class:Adobe Flash ActionScript Communication File

An ACS file could also be a communication file or a script written in the ActionScript programming language. This file type contains code that is executed by Flash Media Server hosting software and mainly used for loading Flash apps, streaming multimedia content, etc.

Author: Adobe Systems Incorporated
File Category:Developer Files

Software Programs That Open Adobe Flash ActionScript Communication File Files:


Adobe Animate CC 2017 by Adobe Systems Incorporated

Compatible with:

Windows
Mac

Adobe Dreamweaver by Adobe Systems Incorporated

Compatible with:

Windows
Mac

Adobe Media Server by Adobe Systems Incorporated

Compatible with:

Windows
Linux
.ASC
File Name:.asc
Class:LTspice Circuit Schematic File

The ACS file extension is related to the LTspice circuit simulation application. It contains circuit schematic CAD drawing created by the program which may include the layout, symbols, and connections.

Author: Linear Technology
File Category:CAD Files

Software Programs That Open LTspice Circuit Schematic File Files:


LTspice by Linear Technology

Compatible with:

Windows
OS X El Capitan
.ASC
File Name:.asc
Class:3D Studio Max 3D ASCII Scene

The ASC file extension is related to 3D Studio Max, an animation program developed by Autodesk. Autodesk developed the ASC file format in order to have an easier interchange of the 3D data between 3D modeling applications. It contains 3D scenes in ASCII format that is readable by any text editor but the scene itself can only be opened by programs that support the ASC file extension.

Author: Autodesk, Inc.
File Category:3D Image Files

Software Programs That Open 3D Studio Max 3D ASCII Scene Files:


Autodesk 3ds Max by Autodesk, Inc.

Compatible with:

Windows
.ASC
File Name:.asc
Class:Atari Jaguar Sound Patch File

The ASC file is also used by Atari Jaguar, a video game console released in 1993. The file stores ASCII version of Jaguar Synth sound patch. This is MADMAC source code file that is usually included by one of the source code files used with the Jaguar Synth and Music driver.

Author: Atari Corporation
File Category:Audio Files

Software Programs That Open Atari Jaguar Sound Patch File Files:


Atari Jaguar by Atari Corporation

Compatible with:

Atari TOS
.ASC
File Name:.asc
Class:Atlantis Word Processor Spellchecker File

The Atlantis Word Processor, an application used to create rich-formatted texts, uses the ASC file extension to store Spellchecker files.

Author: Rising Sun Solutions
File Category:Data Files

Software Programs That Open Atlantis Word Processor Spellchecker File Files:


Atlantis Word Processor by Rising Sun Solutions

Compatible with:

Windows
.ASC
File Name:.asc
Class:Apohysis Script File

The ASC file extension is associated with Apohysis, a Windows-only program used for designing and rendering fractal flames. It stores the majority of the sequence of program commands.

Author: Open Source
File Category:Uncommon Files

Software Programs That Open Apohysis Script File Files:


Apophysis by Open Source

Compatible with:

Windows

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File Search


ASC Requests


Leading Mobiles

Samsung (28.86%)
Apple (21.83%)
Huawei (9.25%)
Xiaomi (6.74%)
LG (3.11%)

Operating System Rankings

7 (45.73%)
10 (44.56%)
8.1 (5.41%)
XP (2.79%)
8 (0.97%)


Troubleshoot ASC Files


Frequent ASC Opening Issues

Missing Mozilla Thunderbird

Double-clicking your ASC file prompts the message "%%os%% Can't Open ASC File". Customarily, this means that Mozilla Thunderbird is not installed on %%os%%. You won't be able to double-click to open your ASC because your OS doesn't know what to do with it.


Tip: When you have another program installed that you know will open your ASC, you can select it from the other programs listed (see "Show Apps").


Obsolete Version of Mozilla Thunderbird

Sometimes your installed version of Mozilla Thunderbird won't support your PGP (Pretty Good Privacy) ASCII Armored File file. Download the latest Mozilla Thunderbird version from the Mozilla website to ensure you have the correct one installed. The primary cause of this problem is that your PGP (Pretty Good Privacy) ASCII Armored File file was created by a different (newer) version of Mozilla Thunderbird than what's installed.


Tip: Investigate your ASC file by right-clicking and selecting "Properties" to find clues on what version you need.


Summary: Not having the right Mozilla Thunderbird version on your computer can cause problems opening ASC files.


Additional ASC Opening Issues

Assuming you have the right Mozilla Thunderbird version installed, other problems can prevent you from opening ASC files. If you are continuing to have errors with loading ASC files, other external issues might be to blame. Issues that aren't software-related:

  • Windows Registry ASC file paths that are incorrect
  • The ASC file description within the Windows Registry was removed
  • Invalid installation of a ASC-associated program (eg. Mozilla Thunderbird)
  • ASC file corruption
  • The ASC is infected with a virus
  • Drivers associated with ASC software need to be updated
  • Windows has inadequate resources to open your PGP (Pretty Good Privacy) ASCII Armored File file

Quiz: Which operating system pioneered hierarchical file system (eg. file folders)?








Poll: How many different computer files (eg. documents, videos, audio) do you typically view or edit on a daily basis?








How to Fix Problems Opening ASC Files

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