Trouble uploading library

I have downloaded the Array library from this link http://playground.arduino.cc/Code/Array
I unzipped the folder and pasted the folder in C:\Program Files (x86)\Arduino\libraries.
When I try to <#include Array.h> I get the following error.

Any help? I’ve been dealing with this for awhile.

Arduino: 1.8.2 (Windows 10), Board: "Arduino Nano, ATmega328"

In file included from C:\Users\tenicho\Documents\CI\Hydraulic jump\arduino\final\final.ino:1:0:

C:\Users\tenicho\Documents\Arduino\libraries\Array/Array.h:33:22: fatal error: WProgram.h: No such file or directory

 #include <WProgram.h>

                      ^

compilation terminated.

Multiple libraries were found for "Array.h"
 Used: C:\Users\tenicho\Documents\Arduino\libraries\Array
 Not used: C:\Program Files (x86)\Arduino\libraries\Array
exit status 1
Error compiling for board Arduino Nano.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Open C:\Users\tenicho\Documents\Arduino\libraries\Array/Array.h in a text editor
Change line 33 from:

#include <WProgram.h>

to:

#include <Arduino.h>

Save the file.

And delete the one in C:\Program Files (x86)\Arduino\libraries. That is NEVER the place to extract a downloaded library (or to place anything really).