If you found a link on their platform for a specific program (like a Windows activator or a system tool), it will likely come as a .rar file to save space and bundle files together.
فتح ملفات RAR باستخدام برنامج WinRAR: فتح ملف RAR ШЄЩ†ШІЩЉЩ„ PROTEACHIN rar
Since "PROTEACHIN" is the name of the blog, "PROTEACHIN.rar" is likely a compressed file containing a tool or software discussed in one of their tutorials. How to Download and Open the File If you found a link on their platform