To help further, could you tell me or game you're trying to launch? Knowing the source of the download would also help me confirm if the file is safe to open.
: RAR files are compressed archives and cannot be opened by default Windows or macOS text editors. You need a tool like 7-Zip (Windows) or The Unarchiver (Mac) to extract the launcher files. Haksiu Launcher.rar
: If the file still looks like text, right-click it, select "Open with..." , and choose your installed extraction tool (like 7-Zip or WinRAR). Safety Note To help further, could you tell me or