Calling an HTML file w/o extension?

I have been looking around on W3C and other sites for an explanation on this but am still unclear.

I am trying to call a file which has a .html extension but without having to enter the file extension. Something like this:

Which should call myFile.html. From what I have read, it seems .html extension should be default on most http:// address or World Wide Web servers, correct?

I might just be out of my mind. Any help/explanation would be appreciated.