RTA File

What are RTA files and how to open them

Are you having problems opening a RTA file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your RTA files.

What is a RTA file?

A .RTA file is a RoboHelp Data file.

RoboHelp Data File (.RTA) is a proprietary data file used by Adobe RoboHelp as part of its internal project structure. It holds project metadata and internal state information that RoboHelp reads and updates when a project is opened or modified. These files are not intended to be viewed or edited by users directly.

Adobe RoboHelp writes .RTA files automatically as one component of a RoboHelp project folder. When you create, save, or modify topics, layouts, navigation, or other project settings, RoboHelp updates the corresponding .RTA file. During standard workflow you do not need to interact with these files, and they do not affect final help, document, or web output directly.

In project file listings published by Adobe, the .RTA file type is labelled "RoboHelp RTA Data File" among the formats RoboHelp can open or use. It is categorized under data/project internal use rather than externally published content like HTML, XML, or output formats.

How to open RTA files

We have identified one RTA opener that is compatible with this specific type of RTA file.

Programs that open RoboHelp Data files

Last updated: August 13, 2026

Various apps that use files with this extension

These apps are known to open certain types of RTA files. Remember, different programs may use RTA files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about RTA file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.