Files with rt file extension can also be found as documents saved in Rich Text Format. The default rtf extension is much more common though.

There is one other file type using
the RT file extension!

rt icon.rt - RealText subtitle

Detailed description

Software that open rt file

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RT file extension - Rich Text document

What is rt file? How to open rt files?

File type specification:

Text file type icon Text file type

The rt file extension is sometimes used for text files in Rich Text Format. In this format the text along with some very common formatting is preserved and stored in a plain ASCII text file with additional formatting commands somewhat like HTML files).

The more common file suffix used for Rich Text files is the RTF file extension.

MIME types:
text/richtext

Updated: October 2, 2019

The default software associated to open rt file:

NotePad++ text editor icon

Notepad++ Team logoNotePad++ text editor  Microsoft Windows software

Company or developer:
Notepad++ Team

A very popular free text and source code editor. It supports syntax highlighting and syntax folding for C, C++, HTML, ASP, Java, Pascal, PHP, Cobol, CSS etc. Notepad++ also supports plugins to add new features. It is localized to many languages.

Help how to open:

Any text editor or word processor with support of RTF format should be able to open and work with *.rt files.

How to convert:

You can convert these documents much like any other *.rtf files. Just rename the suffix from rt to rtf if your program has trouble recognizing it as RTF document.

List of software applications associated to the .rt file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open rt file, edit rt file, convert rt file, view rt file, play rt file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting rt files.

Software that open rt file - Rich Text document

Programs supporting the exension rt on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open rt file action.

Microsoft Windows:

Main software associated with rt file by default:
NotePad++ text editor small icon NotePad++ text editor
Other suggested software:
Sublime Text small icon Sublime Text

Apple macOS / Mac OS X:

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