What is an RTX file?
The .RTX file extension has multiple uses. It is most commonly a Ringtone Text Transfer file, which functions as a standard MIDI music file. It is also used as a Rich Text Format document by Microsoft, a saved chat log by AOL Instant Messenger, or a thermodynamic calculation project file by Thermo-Calc Software.
How to open RTX files?
You can open .RTX audio files with media players like VLC media player or Apple QuickTime. If the file is text data, you can open it with text editors like Microsoft Word or Notepad++. Because the .RTX extension has multiple possible meanings, it is difficult to know the correct program to use.
Identify your file
viewer.online/rtx analyzes .RTX files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. If your file fails to open on your computer, we recommend using viewer.online/rtx to identify the actual format of your file before you download new software.
Summary
Because .RTX files use the known MIDI format, viewer.online/rtx can safely open and display them online, eliminating compatibility problems.