This installation package you have might be corrupted or your have clicked some wrong file.
Here are methods for installation. Try these .
Do you know, how to install a software? it is easy and same.
Just follow below methods:
1) Installing from CD/DVD
a) Insert CD/DVD
b) While prompts for Auto-play, just Run it.
c) If it does not ask for Auto Run, then open your Windows Explorer and go to CD/DVD Drive and explore it. Search for Auto Run.exe or Auto Play.exe. If these both files are not available, find Setup.exe or Install.exe and simply double click on it.
d) There should appear an wizard.Follow instructions and your software will be installed.
2) Installing from Downloaded File
a) If downloaded file is Single .exe File, then right click and Choose Run it. If .zip or any other archive file, just extract it and Follow step (C) from above. Rest is same.