: It is a .rar file, a proprietary archive format used to store one or more files in a compressed state.
: The official software for creating and opening .rar files. TT_0.89.8a.rar
: Once the software is installed, you can right-click the file and select "Extract Here" or "Extract to TT_0.89.8a/" to see the internal folders. Safety and Troubleshooting : It is a
: If you receive an "Unexpected end of archive" or "Checksum error," the file may be corrupted. WinRAR includes a "Repair archive" tool that can sometimes fix these issues. Safety and Troubleshooting : If you receive an
: A popular free and open-source alternative that can extract .rar files, though it sometimes encounters issues with archives created by very new versions of WinRAR.
: Always scan .rar files downloaded from third-party modding sites with antivirus software before extracting, as archives are a common way to mask malicious executables. Not managing to extract RAR archive using rarfile module
The "TT" in the filename stands for , and the version number "0.89.8a" corresponds to a specific development build from the game's early access period around late 2018.