File Extension Library


.EXT File Extension

  • Developer by: Symantec
  • Category: Plugin Files

What are .EXT files and how to open them?

Can't open .EXT file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .EXT file.

What is a .EXT file extension?

.EXT file extension is created by Symantec. .EXT has been classified as Plugin Files.

.EXT is Norton Commander Extension

Software extension used by Norton Commander for DOS / Windows 95; allows users to modify files, such as change file attributes and synchronize directories, using a text-based interface.

File Type 2 Generic Email Attachment
Category: Misc Files

File that may be sent by an automated emailing script or program; uses the generic filename filename.ext (the file's name and "ext" for "extension"); may be a file created in one of many text or binary formats.

If you receive an EXT file as an email attachment, it is generally not clear what the file format is. Therefore, it is best to contact the sender of the email to determine the file format.

Many automated emailer code examples available on the Web use the generic string "filename.ext" when referring to the email attachment. Therefore, it's possible the script author did not replace the filename string with the appropriate attachment filename when sending the email.

How to fix problems with .EXT files

  1. You need to update the application that you normally use to open .EXT files. Only the latest version of the software supports the current .EXT file format
  2. You need to check the .EXT file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)