Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs
(+1)

As the other reply said, you shouldn't be converting rar files, thats why they don't work for you, you only need to extract them. Extracting only takes seconds and unless the files corrupted, shouldn't have any issues. This link will help you: https://www.howtogeek.com/73904/beginner-how-to-extract-.rar-files-on-windows-7-and-mac-os-x/