Use a tool like Windows Defender or Avast to scan the file before extracting.
Before opening any unknown archive file, especially one with a generic alphanumeric name: Download DA4A192022 rar
Once the software is installed, right-click the downloaded DA4A192022.rar file and select "Extract Here" or "Extract to DA4A192022/" . Use a tool like Windows Defender or Avast
If you have been provided a legitimate link to this file, you will need specific software to "unpack" or "extract" its contents: Download DA4A192022 rar