Installing new APIs using java for OS X

I've downloaded a new API for Java to access Excel files, but I'm not sure how to install it so that I can import it for use in my program Thank you for your help thank you

Solution

You really don't have to "Install" it - you just put it in classpath For example, if you are using eclipse, you can right-click the project, select build path – > configure build path, and then select library