Having problems opening an EXT file?

We have programs that can open or convert your EXT files.

Opening EXT files

Did your computer fail to open an EXT file? We explain what EXT files are and recommend software that we know can open or convert your EXT files.

What is an EXT file?

Files that contain the .ext file extension are most commonly associated with the Norton Commander software application. This application is primarily used on the DOS and Windows 95 operating systems.

Norton Commander allows a user to modify the files on their hard drive using a text-based interface. The files that are modified using the Norton Commander program are saved using the .ext file suffix.

The .ext file extension is also used for email text attachments by a variety of POP 3 email applications. When a user sends or receives an attachment using the email program, the attachment is saved using the .ext file suffix. This allows the user access to the file attachment without online connectivity.

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

About File Extension EXT

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the EXT file format or software that uses files with the EXT suffix, please do get in touch - we would love hearing from you.