Ok I'm fairly new to this. I'm assuming I need apache with my hosting.

Where can I find a good reference for learning how to have all the files on my website from www.website.com/file/filename.php to just be www.website.com/file/filename ?

(No file extension necessary)
I noticed it has something to do with a htaaccess file..

can anyone explain or send me in the right direction?

Thanks

Mike