: Extensions like Save All Resources or Resource Saver allow users to download a website's complete frontend source code (HTML/CSS/JS) directly from their browser, which can then be manually compressed into a RAR. How to Extract and Use Source Code RARs

: While the default download for repositories is ZIP, developers often upload manual releases in RAR or TAR formats under the Releases or Assets tab. Download Code Spurce rar

Standard operating systems (Windows, macOS) do not have native tools to create or open RAR files. You will need a third-party application: How To Open, Create, and Convert RAR Files - AVG AntiVirus : Extensions like Save All Resources or Resource