Run the file (or the download link) through VirusTotal , which checks the file against over 70 different antivirus engines.
If you have already downloaded it, do not extract the contents. Download JKALLbks13W rar
Given the lack of a digital footprint for this specific file, it is highly likely to be unsafe . It is best to delete it and look for the content through official or verified channels. Run the file (or the download link) through