RAR files themselves are not inherently dangerous, but they are frequently used as "containers" for malware because:

If you have downloaded this specific file, follow these steps to ensure your system's safety: rar | Flutter package - Pub.dev

A RAR file is a compressed archive developed by Eugene Roshal. It is used to bundle multiple files into one smaller package to save storage space and make sharing easier. Potential Risks of "APV7BS.rar"

: Malicious executables hidden inside an archive (especially if password-protected) may not be detected by scanners until they are extracted.