– Version 1.10 can only unpack .cat files. It cannot repack modified files into new .cat archives. For repacking, you must use the official XRCatTool.exe (from Egosoft SDK) or another third-party tool. This is the single biggest missing feature.
Operating the tool is a straightforward process, typically handled via a or by dragging and dropping files onto the executable.
Note: Access to the download on Egosoft’s site requires a registered forum account with a linked X game. Using the Tool for Modding Unable to download the Catalogue Tool - egosoft.com X Rebirth Catalog Tool 1.10
While the official is the gold standard, it’s not the only option. The modding community has created fantastic alternative and complementary tools. These can be especially useful if you prefer open-source software or have trouble with the official tool's registration requirement.
– The GUI is minimalist but functional: a two-pane explorer (left: catalog tree, right: file list). No fancy graphics, but that means no lag. Buttons are clearly labeled (Extract, Search, Verify). – Version 1
The command-line version of the tool offers powerful functionality for advanced users. By running XRCatTool from a console window within the X Tools directory, users can script complex extraction and repacking operations, making it a favorite for developers managing large modding projects.
under the "Tools" category in your Steam library. Once installed, selecting "Play" allows you to launch the GUI Catalog Tool directly. Practical Usage Tip [WIP][Tutorial] Building your own ship for dummies 2 This is the single biggest missing feature
Using excessive compression levels on large asset files.
Click Save As . Name your file ext_01.cat . The tool automatically generates the corresponding ext_01.dat file.
. This is an essential tool for modders who need to access the game's internal XML files, scripts, and assets. X Community Wiki Key Features Legacy Support