These are called executable files and bear the file extension .exe. Executables are the easiest type of file to install. In most cases, you simply double-click the file to run the program. Or, if a Setup file has been created, double-click the Setup file to install. A file that requires another program to view or open it.
Some files require another program in order to be opened.
Some files, in order to speed the downloading process, have been compressed. In order to use such files they must first be decompressed, or expanded. This requires another program, one which, thankfully, can be also be downloaded from the Internet. Go to the Booster called Compressing and Decompressing Files with WinZip for more on that topic. In this lesson, so far, you have downloaded an executable file.