May 05, · You may be wondering how to download WinRAR: you just need to click on the green button at the top of the page. Next, you will have to run the file in order to install WinRAR. You will be able to compress files by selecting them and choosing the WinRAR option with a right-click, and decompress files with a right click and then selecting WinRAR again/5(68). WinRAR Download - Official WinRAR / RAR publisher. The compression tool that also supports ZIP, 7-Zip, Z, 7z, CAB, ARJ, LZH, TAR, Gzip, UUE, BZIP2 and ISO/5().