Since Windows and macOS don't natively support RAR, you typically need a third-party tool like WinRAR , 7-Zip , or PeaZip to extract the contents. Safety & Security Warning
RAR (Roshal ARchive) is a proprietary format similar to ZIP files. They are often used to package software, large media collections, or multi-part backups.
There is no "official" or standard file named "1536.rar." If you are considering downloading this, keep the following security risks in mind: What is RAR file extension - PeaZip