Before extracting, right-click the file and run it through your installed antivirus software (like Windows Defender) to check for embedded scripts or trojans.
Download the official, free client directly from the 7-Zip Official Website. Karissa3.7z
WinRAR also supports reading .7z files, provided you are running a modern 64-bit version. Extraction Steps Before extracting, right-click the file and run it