EXT File Description

Written by:   |   Last Updated: December 05, 2018

Microsoft Silver

EXT File Summary

Most EXT files can be viewed with eight known software applications, typically Norton Commander developed by Symantec Corporation. It's main file type association is the Norton Commander Extension format, but also includes two other rarely-seen file types. The EXT File Extension are listed predominantly as Plugin Files, while in other circumstances they can be Uncommon Files or Settings Files.

File Extension EXT is supported by DOS, Windows, and Mac operating systems. These types of files can be found on both desktop and mobile devices. The Popularity Rating for EXT files is "Low", which means these files are not ordinarily found on an everyday user's device.

Although there is a lot more to know about EXT files, those are the most important details of these types of files. If you are having trouble opening these files, or would like more detailed information, please see our comprehensive information below.

Low
Popular
2464
Standing

/ 11690

Active

File Status

5

December

2018

Refreshed

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EXT Types

  3 known file types use this extension

Chief EXT Description

.EXT
File ID:.ext
Type:Norton Commander Extension

The EXT file extension is primarily associated with the MS-DOS file managing program Norton Commander. It stores an extension that adds new features every now and then to Norton Commander.

Author: Symantec Corporation
File Category:Plugin Files
Registry Key: HKEY_CLASSES_ROOT\.ext

Software Programs That Open The Norton Commander Extension:


Norton Commander by Symantec Corporation

DOS

More EXT Files

.EXT
File ID:.ext
Type:Generic Email Text Attachment

The EXT file extension is associated with several e-mail clients. EXT files are automated emailing script or program sent by these clients. It is saved in a text format (and sometimes in binary) and is viewable with most text editors.

Author: Sublime HQ Pty Ltd
File Category:Uncommon Files

Software Programs That Open Generic Email Text Attachment Files:


Microsoft Notepad by Microsoft Corporation

Compatible with:

Windows
Mac
Linux

Notepad++ by Don Ho

Compatible with:

Windows
Mac
Linux

Gedit by GNOME

Compatible with:

Linux

Apple TextEdit by Apple

Compatible with:

Mac

Sublime Text by Sublime HQ Pty Ltd

Compatible with:

Windows
Mac
Linux

Atom by GitHub, Inc.

Compatible with:

Windows
Mac
Linux
.EXT
File ID:.ext
Type:Microsoft Visual Studio Project Extended Properties

The EXT file extension is related to the Microsoft Visual Studio and EXT files may contain extended properties for Visual Studio projects.

Author: Microsoft Corporation
File Category:Settings Files

Software Programs That Open Microsoft Visual Studio Project Extended Properties Files:


Microsoft Visual Studio by Microsoft Corporation

Compatible with:

Windows

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EXT Demand


Top Browsers

Chrome (58.80%)
Firefox (11.05%)
Internet Explorer (9.04%)
Edge (8.46%)
Safari (3.87%)


EXT Troubleshooting


Common Problems Opening EXT Files

Missing Norton Commander

You encounter an error message such as "%%os%% Can't Open EXT Files" when trying to open your EXT. Usually, this is because you do not have Norton Commander for %%os%% installed. The typical path of opening your EXT with a double-click won't work because %%os%% cannot make the program connection.


Tip: If you know of another program that can open your EXT file, you can try opening it by selecting the application from the programs listed.


Norton Commander Requires Update

Occasionally, you might have an outdated version of Norton Commander installed that's incompatible with your Norton Commander Extension type. If you've got the wrong version of Norton Commander installed, you'll need to install the correct version. This issue mainly occurs when your Norton Commander Extension file was created by a newer version of Norton Commander than you have on your PC.


Tip: You can sometimes get hints about the right program version by right-clicking on the EXT file, selecting "Properties", and looking at the version information.


Summary: In either case, the majority of problems opening EXT files are related to not having the correct software application installed on your computer.


More Causes of Problems Opening EXTs

In the majority of cases, installing the right version of Norton Commander will resolve your issue. If you're still experiencing problems opening EXT files, there could be other computer problems. Issues that aren't software-related:

  • EXT file type Registry entries are wrong
  • Corruption of the EXT file description inside the Registry
  • Invalid installation of a EXT-associated program (eg. Norton Commander)
  • Your EXT file is corrupted (issues with your Norton Commander Extension file itself)
  • Malware-tainted EXT file can't be opened
  • Drivers associated with EXT software need to be updated
  • Windows cannot load your Norton Commander Extension file due to insufficient resources (eg. RAM)

Quiz: How many characters long can a filename be?









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