.rar files are almost the same things as .zip files, you have to extract it to run it, if you don't know how to extract a .rar file here is a video for it.
NOTE: make sure you don't already have things such as 7zip installed, you can do that by searching in the search bar for windows, if you already have them installed just double click the .rar files (if you have WIN11 click on "more options") and then hover with the mouse over an option called 7zip and then click "extract here"
Hope this helps - Franko