: You cannot "open" or "play" part 2 by itself. You must have all parts of the archive (Part 1, Part 2, etc.) in the same folder.
: You only need to right-click on Part 1 and select "Extract." Your extraction software (like WinRAR or 7-Zip) will automatically pull the data from Part 2 and any subsequent parts to reconstruct the original file.
To use this file, you generally need to keep the following in mind: