: Open the downloaded .exe or .dmg file and follow the prompts. During installation, "Toggle All" file associations to ensure the program opens every type of archive.
How to Download & Install WinRAR on Windows 10/11 (Tutorial)
Do you need help or choosing a tool for a different operating system ?
: A completely free, open-source tool famous for its high compression ratio (7z format) and lack of ads. Source: 7-Zip Official