Do you know where the file originated ?
Who sent it to you ?
Most apps will ask for permission , that's a given.....
You need to just be sure.....
I recently scanned a rar file using Avast, and it said it was safe. However, when I tried to open it, it said that it was requesting to make changes to my PC. I'm using 7-zip to open the file. Should I be concerned?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic