The number of stars next to the name of the file represents the rating I have given. The rating starts from 1-5 stars as 5 stars being the best and 1 star being the worst. After the number is a word which represents what type of file it is.
Zip files require a unzipper which is available here.
A simple program used to unzip files. To use this program double click on the file you wish to unzip then select this file as the one to open it with. This program allows you to unzip zip files and to create zip files. Kind of complicated at first but becomes easier over time. This is a shareware and is unregistered.