: Right-click on the first file in the sequence ( 334.part1.rar ) and select "Extract Here" or "Extract to [Folder Name]" .

A file named is the second part of a multi-volume RAR archive . Because this is a "split" archive, you cannot open it alone; you must have all parts (e.g., part1, part2, etc.) to successfully extract the data inside. How to Extract Multi-Part RAR Files

: If the archive is locked, you will usually be prompted for a password as soon as you try to extract part 1.