Files are typically split into parts like part2.rar for several practical reasons:
: If a large download is interrupted, you only need to re-download the corrupted part rather than the entire multi-gigabyte file.
Are you having , or did you receive an error message when trying to open the file?
: Locate the file ending in .part1.rar or just .rar and open it with a tool like WinRAR or 7-Zip .