It is a container that "shrinks" one or more files into a single, smaller package. This makes it easier to transfer via the web or store on a drive.
Use the BetterZip app or Far Manager to unpack the archive.
If a large file is split into smaller parts (e.g., 55957.part1.rar), this could be one segment of a much larger data set. 3. How to Open "55957.rar"
Apps like ZArchiver allow you to browse and extract RAR files directly on your phone. 4. Security Warning
Use tools like WinZip or 7-Zip . Right-click the file and select "Extract Here".