Your extraction tool (like WinRAR or 7-Zip ) will automatically pull data from part 08 and all other parts to recreate the full game folder. Troubleshooting "Part 08" Errors
If you are seeing an error specifically mentioning part 08, it typically indicates one of the following: Returnal-FLT.part08.rar
Ensure all parts have identical filenames except for the part number. If one part was renamed differently during download, the extraction will fail. Your extraction tool (like WinRAR or 7-Zip )