Hi Techwolf38.
.rar is a compressed filetype which requires unpacking software to open.
WinZip, Winrar and 7-Zip are some of the tools able to open and extract .rar files.
The installation steps are as following.
1. Install your unpacking software of choice ( I prefer 7-zip).
2. Right click the .rar file you wish to open.
3. In the dropdown menu you should have an option that say "extract to folder" or "extract to here" if you use 7-zip there might be an additional menu called "7-zip"
4. Open the new folder an run the .exe inside
We are looking to replace the .rar format in the future. Sorry for the confusion!
Hope you enjoy :D