All these parts must be placed in the same folder for the extraction to work.
Ensure you have every numbered part of the sequence (e.g., ...7z.001 , ...7z.002 , ...7z.003 ). TFCCUBRainE.7z.002
If you don't already have a compatible tool, download and install one of the following: 7-Zip (free and recommended) or WinRAR . macOS: The Unarchiver or Keka. Linux: Use the p7zip package ( sudo apt install p7zip-full ). All these parts must be placed in the