Yes, I'm not really familiar with computers, so if someone is an expert, I'm all ears, appreciate🥺
Try right clicking on the .rar file in your downloadfolder. Hover your mouse over 7zip and press on open archive. That should work.
"unable to open file"
same as before
btw that's how I do it in the first time
have you tried downloading "winrar" and opening it with that instead of 7zip?
Maybe that will work for you?