What is an RSG file?
An .RSG file is a multi-purpose file extension most commonly used for game data, saved games, and 3D graphics. Because different software uses the .RSG extension, the exact content of the file depends on the program that created it. For example, it is frequently used as a save file or data file for games like Exanima, RimWorld, and Raft. PopCap Games also uses .RSG files as a Resource Stream Group to store internal game assets.
Outside of gaming, an .RSG file can be a RaySupreme Graph file developed by BrainDistrict GmbH, which stores 3D modeling and rendering data. It is also used by some rugby scheduling software as an XML data file.
How to open RSG files?
Because the .RSG format has multiple possible meanings, you must first identify the file type. Some .RSG files are plain text or structured data like JSON (used by RimWorld) or XML (used by scheduling tools). You can inspect these using basic text editors like Notepad++ or Visual Studio Code.
However, if the file is binary or compiled game data, a text editor will only show unreadable characters. In these cases, you usually need the specific game or software, such as the Exanima client or BrainDistrict tools, to load the file correctly.
Inspecting and Viewing RSG Files Online
If you do not know which program created your file, viewer.online/rsg can help. Our tool analyzes .RSG files to identify the exact format and creator software. It allows you to inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
The .RSG extension serves many purposes, from RimWorld game saves to BrainDistrict's RaySupreme Graph files. This variety can make it difficult to open these files directly. Using viewer.online/rsg is useful for identifying, inspecting, and understanding .RSG files without installing software or dealing with compatibility problems.