Upload the extracted file to services like CheckFileType.com or Toolsley's File Identifier to identify it based on content analysis.
Use a standard archive manager like 7-Zip or WinRAR to open the .rar file without necessarily running the contents. LTSLL7GPD rar
Once open, look at the extension of the file(s) inside. If no extension is visible, you can enable them in Windows File Explorer by selecting View > Show > File name extensions . 2. Technical Analysis for Unknown Files Upload the extracted file to services like CheckFileType